IS a centrally air conditioned or heated room safe

A ROOM WITH AN AIR CONDITION RUNNING IS AS ARID AND DRY AS A DESERT.THEY PULL OUT MOISTURE FROM SKIN AND MAKE IT DRY.AIRBORNE DUST AND FUNGI CAN CAUSE SKIN ALLEGRY. THEY CAN TRANSMIT RESPIRATORY DISIEASES. THEY CAN EXACCERBATE  EYE CONDITIONS SUCH AS CONJUNCTIVITES.

IS  a Properly Ventilated house safe

INCREASE IN VENTILATION CAN INCREASE THE CONCENTRATION OF SOME AIR POLLUTANTS.BUILDINGS TEND US TO SHIELD FROM OZONE HOWEVER INCREASE IN VENTILATION CAN CAUSE INCREASE IN CONCENTRATION OF OZONE.OZONE EFFECTS THE FUNCTIONING OF LUNGS.

Asthma

ASTHMA IS A CONDITION OF CHRONIC SWELLING OF AIRWAYS.THIS IS CAUSED BY POLLEN GRAINS ,DUST PARTICLES PM2.5.IT OBSTRUCTS THE PATHWAY FOR AIR.IT IS EXPECTED  TO GROW TO 100 MILLION BY 2025.THE ANNUAL ECONOMIC COST OF ASTHMA IS $20 MILLION

Bronchiectasis

BRONCHIECTASIS IS PERMANENT ENLARGEMENT OF BRONCHI.ACCORDING TO A SURVEY INCREASE IN THE LEVEL OF PM2.5 CAUSES EXTREME CONDITION OF BRONCHIECTASIS WHICH MAY RESULT IN DEATH.
BRONCHIECTASIS HAS NO KNOWN CURE.

According toWHO

OVER 4 MILLION PEOPLE DIE DUE TO HOUSEHOLD POLLUTION FROM COOKING WITH SOLID FUEL
MORE THAN 50% PREMATURE  DEATHS UNDER 5 ARE DUE TO PNUEMONIA CAUSED BY PARTICULATE MATTER
3.8 MILLION DEATH FROM NON COMMUNICABLE DISEASES ARE DUE TO EXPOSURE OF INDOOR AIR POLLUTION

Chronic obstructive pulmonary disease

IT IS CAUSED FROM POORLY VENTILATED KITCHENS CAUSING INCREASING IN LEVEL OF AIR POLLUTION.PEOPLE WHO LIVE IN LARGER CITY HAVE A GREATER RISK OF COPD.IT CAUSES BLOCKING OF AIRWAYS AND ULTIMATELY LEAD TO DEATH AT EXTREME CONDITIONS.