How Often Should Air Ducts Be Cleaned?
                     How Often Should You Get Your Air Ducts
Cleaned?
Air duct cleaning plays a vital role in keeping your home and family healthy. The
air ducts in your home are not just a passage to deliver air. They also act as a
filter, trapping dust and other particles that can cause allergies, asthma, or other
respiratory problems. Air duct cleaning is imperative as it helps avoid the following:
• Allergies
• Asthma
• Respiratory Problems
• Dirty Air Ducts
To  maintain  your  air  duct's  optimal  working,  you  need  to  have  it  serviced  by
professionals every 3-5 years. Negligence in the air duct cleaning can attract mold
build-up and other pollutants like allergic reactions. Moreover, if you experience
these  things,  it  might  be  a  consideration  for  immediate  air  duct  cleaning.
Therefore, it is highly recommended to get air duct cleaning in Folsom by the
experts for the family's health.  
Why Is It Necessary To Clean The Air Duct? 
You might not know, but your home's indoor air contains more pollutants and dust
than outdoor air. The impurities present in the air circulate in your house through
air  ducts  and  can  adversely  harm  your  family’s  health.  You  may  require  a
professional air duct cleaning in Davis by the licensed HVAC or indoor air quality
contractor under the following circumstances: 
While Moving To A New Place Of Residence
Most homeowners raise the question of why is it  crucial to clean the ducts? In
answer to that, the air duct requires professional cleaning while you move into a
new home. If the previous homeowner was a smoker or a pet owner, and they
didn’t service their air duct for many years, it might be an unhealthy and polluted
house for you to live in. Hence, before settling down in the home, you need to have
your air ducts professionally cleaned. 
Musty Smell Or Mold
Air ducts are home to mold, and they start building up more if the air ducts are left
uncleaned  for  enormous  years.  Musty  smell  and  symptoms  of  itchiness  and
coughing are significant signs indicating the need for cleaning the air duct. Calling
the professionals for air duct cleaning in Sacramento will be beneficial, as they
will mend the mold by sanitizing the area to kill the current growth. 
Extensive Dust And Debris
Over time, dust, pet dander, dead skin cells, and dangerous allergies can build up
if you neglect your air duct cleaning. The excessive debris can be visible in the
dust poofs while released from the air vents. Uncleaned air ducts can cause severe
respiratory problems and other health issues and decrease the system’s airflow
and functioning. Professionals can make your air duct free from this filth to ensure
the maximum airflow and the system’s optimal working. 
Symptoms Of Allergies And Excessive Cold
Uncleaned air ducts circulate contaminated air in the house, causing allergy and
cold-like symptoms to the family members. Dust mites that build in the air duct
can  cause  asthmatic  and  allergic  reactions.  Members  who  have  respiratory
problems are susceptible to becoming sick. Therefore, air duct cleaning once in 1-2
years is vital for home and family health. 
An Infestation Of Pest
Creepy crawlies are likely to be there in the uncleaned air ducts, and their debris
and odor contaminate the air carried throughout the house. If you suspect pests in
or around the ductwork, you might need to call the air duct cleaning professionals
to eradicate the vermin and prevent them from coming into the air duct.
-----Source-----
https://kleenair.mystrikingly.com/blog/how-often-should-you-get-your-air-ducts-cleaned