ap wrote:
Hello,
do you get your air ducts cleaned every few years? We are in a house
for the last
3.5 years and haven't cleaned them. There is some dust and a few people
are catching
colds quite frequently.

Is it worth it? We have a gas furnace. Also, the family is quite
sensitive
to chemicals and I'm not sure if air duct cleaning would cause more
problems.

Thanks for any advice!

I would tape a piece of tissue paper over one of your room supply ducts
for a few hours . Then peel itoff and have a look. If it filetered a
lot of dust then get someone in for a look. If it looks clean I wouldnt
bother .

Colds may be more frquesnt if you are not bringing in enough fresh air.