Positive air pressure system

[winfred.dela]

The big difference on the ventialtion cost is the amount of air to exceed the exhaust, not the air to equal the exhaust. That air has to be made up some how either mechaninaclly or by infitlration.

Hi Abby,

- Does this mean that we just need to infuse the amount of air to exceed the exhaust?
- Then design the 3 stage fresh air filtration system based on this amount of air (to exceed the exhaust) which will be introduced to the system.
- How about the infiltration? it is not filtered.

Hope you would answer above question. Have designed and built HVAC system for microlab and tissue culture labs almost 10 years ago. I may have to change my ways next time. . .

Regards
Winfred