During Re-commissioning of offices Some points from HVAC perspective that need to be thought of:

1. UVC lamps of 254nm can be added in AHUS

2. A higher filtration level from MERV 8 to MERV 14 can also be done.

3. There's been a lot of talk of using fans with elevated set point temperatures.

4. Moving from "Clean" to "Clinically clean” - with Hygiene AHU series.

5. Disinfectant & air Dilution

6. "contactless services"

7. Electrostatic sprayer ESP

8. Thermal scanners / baggage UV scanners

9. WC flushing with seat down

10. PM10 to PM2.5 to PM 0.1

11. Retro commissioning / FA increase/temp 26-27 with fan feels like 24 /

12. HRW Vs cross flow HE / heat pipe

13. MERV 8/14/20 - higher pr drops

14. ULPA filters - 0.12 Micron Vs 250 pascal pr drop, TSP - 120 mm fr AHU

15. ESP filters / UVC lamp Social distancing / personal hygiene

16. Remote Video Inspection/ Commissioning

17. IOT Higher level of automation over Cloud

18. Space energy Index to be benchmarked

19. Use of Certified products

20. Use of Evaporative cooling

21. 100% FA means 6 times power

22. Use of Masks

The solution - Fine filter + UV lamp /26-27 degC with fan / 60% RH

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