FRESH AIR, EXTRACT AIR AND EXHAUST AIR

FRESH AIR, EXTRACT AIR, EXHAUST AIR
FRESH AIR:
WHEN TO SUBTITUTE FOR FRESH AIR.
IF CLIENT WANTS, NO NEED TO THINK. JUST PUT EVEN IF HE SAYS HE WANTS IN TOILET.
IF YOU ARE THE DESIGNER AND PROPOSER, PROVIDE IN ENCLOSED SPACE, IN OFFICES, IN HOTEL ROOMS, AND SO ON. BASICALLY WHERE MORE COMFORT IS REQUIRED. FOR ORDINARY BEDROOMS, GUEST ROOMS NO NEED.
USE: 5-7 CFM/PERSON

EXHAUST AIR:
REMOVE FOUL AIR FROM THE TOILETS. 
USE 5-8 ACPH FOR ORDINARY TOILET
USE 8-12 FOR PUBLIC TOILET

EXTRACT AIR:
REMOVE FOUL AIR FROM OTHER ROOMS LIKE KITCHEN OR SOME OTHER NORMAL ROOMS. 
REMOVE THE SAME AMOUNT OF AIR OR LITTLE LESS OR MORE BASED ON WHAT KIND OF ROOM PRESSURE WE NEED. IF POSITIVE, EXTRACT AIR <FRESH AIR, AND FOR NEGATIVE, EXTRACT> FRESH AIR.


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