Index
1 Air Abrasion Unit Market Overview
1.1 Product Overview and Scope of Air Abrasion Unit
1.2 Air Abrasion Unit Segment by Type
1.2.1 Global Air Abrasion Unit Market Value Comparison by Type (2024-2030)
1.2.2 Portable
1.2.3 Desktop
1.3 Air Abrasion Unit Segment by Application
1.3.1 Global Air Abrasion Unit Market Value by Application: (2024-2030)
1.3.2 Dental Clinic
1.3.3 Hospital
1.4 Global Air Abrasion Unit Market Size Estimates and Forecasts
1.4.1 Global Air Abrasion Unit Revenue 2019-2030
1.4.2 Global Air Abrasion Unit Sales 2019-2030
1.4.3 Global Air Abrasion Unit Market Average Price (2019-2030)
1.5 Assumptions and Limitations
2 Air Abrasion Unit Market Competition by Manufacturers
2.1 Global Air Abrasion Unit Sales Market Share by Manufacturers (2019-2024)
2.2 Global Air Abrasion Unit Revenue Market Share by Manufacturers (2019-2024)
2.3 Global Air Abrasion Unit Average Price by Manufacturers (2019-2024)
2.4 Global Air Abrasion Unit Industry Ranking 2022 VS 2023 VS 2024
2.5 Global Key Manufacturers of Air Abrasion Unit, Manufacturing Sites & Headquarters
2.6 Global Key Manufacturers of Air Abrasion Unit, Product Type & Application
2.7 Air Abrasion Unit Market Competitive Situation and Trends
2.7.1 Air Abrasion Unit Market Concentration Rate
2.7.2 The Global Top 5 and Top 10 Largest Air Abrasion Unit Players Market Share by Revenue
2.7.3 Global Air Abrasion Unit Market Share by Company Type (Tier 1, Tier 2 and Tier 3)
2.8 Manufacturers Mergers & Acquisitions, Expansion Plans
3 Air Abrasion Unit Retrospective Market Scenario by Region
3.1 Global Air Abrasion Unit Market Size by Region: 2019 Versus 2023 Versus 2030
3.2 Global Air Abrasion Unit Global Air Abrasion Unit Sales by Region: 2019-2030
3.2.1 Global Air Abrasion Unit Sales by Region: 2019-2024
3.2.2 Global Air Abrasion Unit Sales by Region: 2025-2030
3.3 Global Air Abrasion Unit Global Air Abrasion Unit Revenue by Region: 2019-2030
3.3.1 Global Air Abrasion Unit Revenue by Region: 2019-2024
3.3.2 Global Air Abrasion Unit Revenue by Region: 2025-2030
3.4 North America Air Abrasion Unit Market Facts & Figures by Country
3.4.1 North America Air Abrasion Unit Market Size by Country: 2019 VS 2023 VS 2030
3.4.2 North America Air Abrasion Unit Sales by Country (2019-2030)
3.4.3 North America Air Abrasion Unit Revenue by Country (2019-2030)
3.4.4 United States
3.4.5 Canada
3.5 Europe Air Abrasion Unit Market Facts & Figures by Country
3.5.1 Europe Air Abrasion Unit Market Size by Country: 2019 VS 2023 VS 2030
3.5.2 Europe Air Abrasion Unit Sales by Country (2019-2030)
3.5.3 Europe Air Abrasion Unit Revenue by Country (2019-2030)
3.5.4 Germany
3.5.5 France
3.5.6 U.K.
3.5.7 Italy
3.5.8 Russia
3.6 Asia Pacific Air Abrasion Unit Market Facts & Figures by Country
3.6.1 Asia Pacific Air Abrasion Unit Market Size by Country: 2019 VS 2023 VS 2030
3.6.2 Asia Pacific Air Abrasion Unit Sales by Country (2019-2030)
3.6.3 Asia Pacific Air Abrasion Unit Revenue by Country (2019-2030)
3.6.4 China
3.6.5 Japan
3.6.6 South Korea
3.6.7 India
3.6.8 Australia
3.6.9 China Taiwan
3.6.10 Indonesia
3.6.11 Thailand
3.6.12 Malaysia
3.7 Latin America Air Abrasion Unit Market Facts & Figures by Country
3.7.1 Latin America Air Abrasion Unit Market Size by Country: 2019 VS 2023 VS 2030
3.7.2 Latin America Air Abrasion Unit Sales by Country (2019-2030)
3.7.3 Latin America Air Abrasion Unit Revenue by Country (2019-2030)
3.7.4 Mexico
3.7.5 Brazil
3.7.6 Argentina
3.8 Middle East and Africa Air Abrasion Unit Market Facts & Figures by Country
3.8.1 Middle East and Africa Air Abrasion Unit Market Size by Country: 2019 VS 2023 VS 2030
3.8.2 Middle East and Africa Air Abrasion Unit Sales by Country (2019-2030)
3.8.3 Middle East and Africa Air Abrasion Unit Revenue by Country (2019-2030)
3.8.4 Turkey
3.8.5 Saudi Arabia
3.8.6 UAE
4 Segment by Type
4.1 Global Air Abrasion Unit Sales by Type (2019-2030)
4.1.1 Global Air Abrasion Unit Sales by Type (2019-2024)
4.1.2 Global Air Abrasion Unit Sales by Type (2025-2030)
4.1.3 Global Air Abrasion Unit Sales Market Share by Type (2019-2030)
4.2 Global Air Abrasion Unit Revenue by Type (2019-2030)
4.2.1 Global Air Abrasion Unit Revenue by Type (2019-2024)
4.2.2 Global Air Abrasion Unit Revenue by Type (2025-2030)
4.2.3 Global Air Abrasion Unit Revenue Market Share by Type (2019-2030)
4.3 Global Air Abrasion Unit Price by Type (2019-2030)
5 Segment by Application
5.1 Global Air Abrasion Unit Sales by Application (2019-2030)
5.1.1 Global Air Abrasion Unit Sales by Application (2019-2024)
5.1.2 Global Air Abrasion Unit Sales by Application (2025-2030)
5.1.3 Global Air Abrasion Unit Sales Market Share by Application (2019-2030)
5.2 Global Air Abrasion Unit Revenue by Application (2019-2030)
5.2.1 Global Air Abrasion Unit Revenue by Application (2019-2024)
5.2.2 Global Air Abrasion Unit Revenue by Application (2025-2030)
5.2.3 Global Air Abrasion Unit Revenue Market Share by Application (2019-2030)
5.3 Global Air Abrasion Unit Price by Application (2019-2030)
6 Key Companies Profiled
6.1 Danville
6.1.1 Danville Corporation Information
6.1.2 Danville Description and Business Overview
6.1.3 Danville Air Abrasion Unit Sales, Revenue and Gross Margin (2019-2024)
6.1.4 Danville Air Abrasion Unit Product Portfolio
6.1.5 Danville Recent Developments/Updates
6.2 Velopex
6.2.1 Velopex Corporation Information
6.2.2 Velopex Description and Business Overview
6.2.3 Velopex Air Abrasion Unit Sales, Revenue and Gross Margin (2019-2024)
6.2.4 Velopex Air Abrasion Unit Product Portfolio
6.2.5 Velopex Recent Developments/Updates
6.3 Dentsply
6.3.1 Dentsply Corporation Information
6.3.2 Dentsply Description and Business Overview
6.3.3 Dentsply Air Abrasion Unit Sales, Revenue and Gross Margin (2019-2024)
6.3.4 Dentsply Air Abrasion Unit Product Portfolio
6.3.5 Dentsply Recent Developments/Updates
6.4 Groman
6.4.1 Groman Corporation Information
6.4.2 Groman Description and Business Overview
6.4.3 Groman Air Abrasion Unit Sales, Revenue and Gross Margin (2019-2024)
6.4.4 Groman Air Abrasion Unit Product Portfolio
6.4.5 Groman Recent Developments/Updates
6.5 EtchMaster
6.5.1 EtchMaster Corporation Information
6.5.2 EtchMaster Description and Business Overview
6.5.3 EtchMaster Air Abrasion Unit Sales, Revenue and Gross Margin (2019-2024)
6.5.4 EtchMaster Air Abrasion Unit Product Portfolio
6.5.5 EtchMaster Recent Developments/Updates
6.6 MicroEtcher
6.6.1 MicroEtcher Corporation Information
6.6.2 MicroEtcher Description and Business Overview
6.6.3 MicroEtcher Air Abrasion Unit Sales, Revenue and Gross Margin (2019-2024)
6.6.4 MicroEtcher Air Abrasion Unit Product Portfolio
6.6.5 MicroEtcher Recent Developments/Updates
7 Industry Chain and Sales Channels Analysis
7.1 Air Abrasion Unit Industry Chain Analysis
7.2 Air Abrasion Unit Key Raw Materials
7.2.1 Key Raw Materials
7.2.2 Raw Materials Key Suppliers
7.3 Air Abrasion Unit Production Mode & Process
7.4 Air Abrasion Unit Sales and Marketing
7.4.1 Air Abrasion Unit Sales Channels
7.4.2 Air Abrasion Unit Distributors
7.5 Air Abrasion Unit Customers
8 Air Abrasion Unit Market Dynamics
8.1 Air Abrasion Unit Industry Trends
8.2 Air Abrasion Unit Market Drivers
8.3 Air Abrasion Unit Market Challenges
8.4 Air Abrasion Unit Market Restraints
9 Research Finding and Conclusion
10 Methodology and Data Source
10.1 Methodology/Research Approach
10.1.1 Research Programs/Design
10.1.2 Market Size Estimation
10.1.3 Market Breakdown and Data Triangulation
10.2 Data Source
10.2.1 Secondary Sources
10.2.2 Primary Sources
10.3 Author List
10.4 Disclaimer
List of Tables
List of Tables
Table 1. Global Air Abrasion Unit Market Value Comparison by Type (2024-2030) & (US$ Million)
Table 2. Global Air Abrasion Unit Market Value Comparison by Application (2024-2030) & (US$ Million)
Table 3. Global Air Abrasion Unit Market Competitive Situation by Manufacturers in 2023
Table 4. Global Air Abrasion Unit Sales (K Units) of Key Manufacturers (2019-2024)
Table 5. Global Air Abrasion Unit Sales Market Share by Manufacturers (2019-2024)
Table 6. Global Air Abrasion Unit Revenue (US$ Million) by Manufacturers (2019-2024)
Table 7. Global Air Abrasion Unit Revenue Share by Manufacturers (2019-2024)
Table 8. Global Market Air Abrasion Unit Average Price (US$/Unit) of Key Manufacturers (2019-2024)
Table 9. Global Key Players of Air Abrasion Unit, Industry Ranking, 2022 VS 2023 VS 2024
Table 10. Global Key Manufacturers of Air Abrasion Unit, Manufacturing Sites & Headquarters
Table 11. Global Key Manufacturers of Air Abrasion Unit, Product Type & Application
Table 12. Global Key Manufacturers of Air Abrasion Unit, Date of Enter into This Industry
Table 13. Global Manufacturers Market Concentration Ratio (CR5 and HHI)
Table 14. Global Air Abrasion Unit by Company Type (Tier 1, Tier 2, and Tier 3) & (based on the Revenue in Air Abrasion Unit as of 2023)
Table 15. Manufacturers Mergers & Acquisitions, Expansion Plans
Table 16. Global Air Abrasion Unit Market Size by Region (US$ Million): 2019 VS 2023 VS 2030
Table 17. Global Air Abrasion Unit Sales by Region (2019-2024) & (K Units)
Table 18. Global Air Abrasion Unit Sales Market Share by Region (2019-2024)
Table 19. Global Air Abrasion Unit Sales by Region (2025-2030) & (K Units)
Table 20. Global Air Abrasion Unit Sales Market Share by Region (2025-2030)
Table 21. Global Air Abrasion Unit Revenue by Region (2019-2024) & (US$ Million)
Table 22. Global Air Abrasion Unit Revenue Market Share by Region (2019-2024)
Table 23. Global Air Abrasion Unit Revenue by Region (2025-2030) & (US$ Million)
Table 24. Global Air Abrasion Unit Revenue Market Share by Region (2025-2030)
Table 25. North America Air Abrasion Unit Revenue by Country: 2019 VS 2023 VS 2030 (US$ Million)
Table 26. North America Air Abrasion Unit Sales by Country (2019-2024) & (K Units)
Table 27. North America Air Abrasion Unit Sales by Country (2025-2030) & (K Units)
Table 28. North America Air Abrasion Unit Revenue by Country (2019-2024) & (US$ Million)
Table 29. North America Air Abrasion Unit Revenue by Country (2025-2030) & (US$ Million)
Table 30. Europe Air Abrasion Unit Revenue by Country: 2019 VS 2023 VS 2030 (US$ Million)
Table 31. Europe Air Abrasion Unit Sales by Country (2019-2024) & (K Units)
Table 32. Europe Air Abrasion Unit Sales by Country (2025-2030) & (K Units)
Table 33. Europe Air Abrasion Unit Revenue by Country (2019-2024) & (US$ Million)
Table 34. Europe Air Abrasion Unit Revenue by Country (2025-2030) & (US$ Million)
Table 35. Asia Pacific Air Abrasion Unit Revenue by Region: 2019 VS 2023 VS 2030 (US$ Million)
Table 36. Asia Pacific Air Abrasion Unit Sales by Region (2019-2024) & (K Units)
Table 37. Asia Pacific Air Abrasion Unit Sales by Region (2025-2030) & (K Units)
Table 38. Asia Pacific Air Abrasion Unit Revenue by Region (2019-2024) & (US$ Million)
Table 39. Asia Pacific Air Abrasion Unit Revenue by Region (2025-2030) & (US$ Million)
Table 40. Latin America Air Abrasion Unit Revenue by Country: 2019 VS 2023 VS 2030 (US$ Million)
Table 41. Latin America Air Abrasion Unit Sales by Country (2019-2024) & (K Units)
Table 42. Latin America Air Abrasion Unit Sales by Country (2025-2030) & (K Units)
Table 43. Latin America Air Abrasion Unit Revenue by Country (2019-2024) & (US$ Million)
Table 44. Latin America Air Abrasion Unit Revenue by Country (2025-2030) & (US$ Million)
Table 45. Middle East & Africa Air Abrasion Unit Revenue by Country: 2019 VS 2023 VS 2030 (US$ Million)
Table 46. Middle East & Africa Air Abrasion Unit Sales by Country (2019-2024) & (K Units)
Table 47. Middle East & Africa Air Abrasion Unit Sales by Country (2025-2030) & (K Units)
Table 48. Middle East & Africa Air Abrasion Unit Revenue by Country (2019-2024) & (US$ Million)
Table 49. Middle East & Africa Air Abrasion Unit Revenue by Country (2025-2030) & (US$ Million)
Table 50. Global Air Abrasion Unit Sales (K Units) by Type (2019-2024)
Table 51. Global Air Abrasion Unit Sales (K Units) by Type (2025-2030)
Table 52. Global Air Abrasion Unit Sales Market Share by Type (2019-2024)
Table 53. Global Air Abrasion Unit Sales Market Share by Type (2025-2030)
Table 54. Global Air Abrasion Unit Revenue (US$ Million) by Type (2019-2024)
Table 55. Global Air Abrasion Unit Revenue (US$ Million) by Type (2025-2030)
Table 56. Global Air Abrasion Unit Revenue Market Share by Type (2019-2024)
Table 57. Global Air Abrasion Unit Revenue Market Share by Type (2025-2030)
Table 58. Global Air Abrasion Unit Price (US$/Unit) by Type (2019-2024)
Table 59. Global Air Abrasion Unit Price (US$/Unit) by Type (2025-2030)
Table 60. Global Air Abrasion Unit Sales (K Units) by Application (2019-2024)
Table 61. Global Air Abrasion Unit Sales (K Units) by Application (2025-2030)
Table 62. Global Air Abrasion Unit Sales Market Share by Application (2019-2024)
Table 63. Global Air Abrasion Unit Sales Market Share by Application (2025-2030)
Table 64. Global Air Abrasion Unit Revenue (US$ Million) by Application (2019-2024)
Table 65. Global Air Abrasion Unit Revenue (US$ Million) by Application (2025-2030)
Table 66. Global Air Abrasion Unit Revenue Market Share by Application (2019-2024)
Table 67. Global Air Abrasion Unit Revenue Market Share by Application (2025-2030)
Table 68. Global Air Abrasion Unit Price (US$/Unit) by Application (2019-2024)
Table 69. Global Air Abrasion Unit Price (US$/Unit) by Application (2025-2030)
Table 70. Danville Corporation Information
Table 71. Danville Description and Business Overview
Table 72. Danville Air Abrasion Unit Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 73. Danville Air Abrasion Unit Product
Table 74. Danville Recent Developments/Updates
Table 75. Velopex Corporation Information
Table 76. Velopex Description and Business Overview
Table 77. Velopex Air Abrasion Unit Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 78. Velopex Air Abrasion Unit Product
Table 79. Velopex Recent Developments/Updates
Table 80. Dentsply Corporation Information
Table 81. Dentsply Description and Business Overview
Table 82. Dentsply Air Abrasion Unit Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 83. Dentsply Air Abrasion Unit Product
Table 84. Dentsply Recent Developments/Updates
Table 85. Groman Corporation Information
Table 86. Groman Description and Business Overview
Table 87. Groman Air Abrasion Unit Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 88. Groman Air Abrasion Unit Product
Table 89. Groman Recent Developments/Updates
Table 90. EtchMaster Corporation Information
Table 91. EtchMaster Description and Business Overview
Table 92. EtchMaster Air Abrasion Unit Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 93. EtchMaster Air Abrasion Unit Product
Table 94. EtchMaster Recent Developments/Updates
Table 95. MicroEtcher Corporation Information
Table 96. MicroEtcher Description and Business Overview
Table 97. MicroEtcher Air Abrasion Unit Sales (K Units), Revenue (US$ Million), Price (US$/Unit) and Gross Margin (2019-2024)
Table 98. MicroEtcher Air Abrasion Unit Product
Table 99. MicroEtcher Recent Developments/Updates
Table 100. Key Raw Materials Lists
Table 101. Raw Materials Key Suppliers Lists
Table 102. Air Abrasion Unit Distributors List
Table 103. Air Abrasion Unit Customers List
Table 104. Air Abrasion Unit Market Trends
Table 105. Air Abrasion Unit Market Drivers
Table 106. Air Abrasion Unit Market Challenges
Table 107. Air Abrasion Unit Market Restraints
Table 108. Research Programs/Design for This Report
Table 109. Key Data Information from Secondary Sources
Table 110. Key Data Information from Primary Sources
List of Figures
Figure 1. Product Picture of Air Abrasion Unit
Figure 2. Global Air Abrasion Unit Market Value Comparison by Type (2024-2030) & (US$ Million)
Figure 3. Global Air Abrasion Unit Market Share by Type in 2023 & 2030
Figure 4. Portable Product Picture
Figure 5. Desktop Product Picture
Figure 6. Global Air Abrasion Unit Market Value Comparison by Application (2024-2030) & (US$ Million)
Figure 7. Global Air Abrasion Unit Market Share by Application in 2023 & 2030
Figure 8. Dental Clinic
Figure 9. Hospital
Figure 10. Global Air Abrasion Unit Revenue, (US$ Million), 2019 VS 2023 VS 2030
Figure 11. Global Air Abrasion Unit Market Size (2019-2030) & (US$ Million)
Figure 12. Global Air Abrasion Unit Sales (2019-2030) & (K Units)
Figure 13. Global Air Abrasion Unit Average Price (US$/Unit) & (2019-2030)
Figure 14. Air Abrasion Unit Report Years Considered
Figure 15. Air Abrasion Unit Sales Share by Manufacturers in 2023
Figure 16. Global Air Abrasion Unit Revenue Share by Manufacturers in 2023
Figure 17. The Global 5 and 10 Largest Air Abrasion Unit Players: Market Share by Revenue in 2023
Figure 18. Air Abrasion Unit Market Share by Company Type (Tier 1, Tier 2 and Tier 3): 2019 VS 2023
Figure 19. Global Air Abrasion Unit Market Size by Region (US$ Million): 2019 VS 2023 VS 2030
Figure 20. North America Air Abrasion Unit Sales Market Share by Country (2019-2030)
Figure 21. North America Air Abrasion Unit Revenue Market Share by Country (2019-2030)
Figure 22. United States Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 23. Canada Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 24. Europe Air Abrasion Unit Sales Market Share by Country (2019-2030)
Figure 25. Europe Air Abrasion Unit Revenue Market Share by Country (2019-2030)
Figure 26. Germany Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 27. France Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 28. U.K. Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 29. Italy Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 30. Russia Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 31. Asia Pacific Air Abrasion Unit Sales Market Share by Region (2019-2030)
Figure 32. Asia Pacific Air Abrasion Unit Revenue Market Share by Region (2019-2030)
Figure 33. China Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 34. Japan Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 35. South Korea Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 36. India Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 37. Australia Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 38. China Taiwan Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 39. Indonesia Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 40. Thailand Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 41. Malaysia Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 42. Latin America Air Abrasion Unit Sales Market Share by Country (2019-2030)
Figure 43. Latin America Air Abrasion Unit Revenue Market Share by Country (2019-2030)
Figure 44. Mexico Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 45. Brazil Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 46. Argentina Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 47. Middle East & Africa Air Abrasion Unit Sales Market Share by Country (2019-2030)
Figure 48. Middle East & Africa Air Abrasion Unit Revenue Market Share by Country (2019-2030)
Figure 49. Turkey Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 50. Saudi Arabia Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 51. UAE Air Abrasion Unit Revenue Growth Rate (2019-2030) & (US$ Million)
Figure 52. Global Sales Market Share of Air Abrasion Unit by Type (2019-2030)
Figure 53. Global Revenue Market Share of Air Abrasion Unit by Type (2019-2030)
Figure 54. Global Air Abrasion Unit Price (US$/Unit) by Type (2019-2030)
Figure 55. Global Sales Market Share of Air Abrasion Unit by Application (2019-2030)
Figure 56. Global Revenue Market Share of Air Abrasion Unit by Application (2019-2030)
Figure 57. Global Air Abrasion Unit Price (US$/Unit) by Application (2019-2030)
Figure 58. Air Abrasion Unit Value Chain
Figure 59. Air Abrasion Unit Production Process
Figure 60. Channels of Distribution (Direct Vs Distribution)
Figure 61. Distributors Profiles
Figure 62. Bottom-up and Top-down Approaches for This Report
Figure 63. Data Triangulation
Figure 64. Key Executives Interviewed