Calculate minimum ventilation rates for commercial buildings based on ASHRAE Standard 62.1. Supports 2016 and 2019 versions, offering unlimited project storage and quick field calculations.






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| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | $19.99 | 3.0★ (2) | No | No | Nov 2026 | ||
| 2 | Free | 1.0★ (2) | No | No | Nov 2026 | ||
| 3 | Free | 4.2★ (10) | No | No | Nov 2026 | ||
| 4 | $6.99 | — | No | No | Aug 2026 | ||
| 5 | $9.99 | — | No | No | Oct 2026 | ||
| 6 | Free | 2.4★ (19) | No | No | Oct 2026 | ||
| 7 | $5.99 | — | No | No | Sep 2026 | ||
| 8 | Free | 4.8★ (13) | No | Yes | Oct 2026 |






Calculate minimum ventilation rates for commercial buildings based on ASHRAE Standard 62.1. Supports 2016 and 2019 versions, offering unlimited project storage and quick field calculations.






Calculate pressure loss for a selection of ASHRAE duct fittings. Create projects, customize inputs, and generate reports with spreadsheet attachments. Supports both I-P and SI units and works on iPhone and iPad.



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