Here are averages that may help you know how regularly you should get a new air filter at your residence: Vacation house or one occupant and no pets or allergies: every 6–12 months. Ordinary suburban home without pets: every 90 days. One dog or cat: every 60 days.
Should I put a filter in my air return?
Your AC system should have a proper fitting filter on the return side. By placing a good fitting, high quality filter on the return vent, you will remove particles from the air before they can enter the AC system. A good filter will keep your air handling unit, coils, and ducts clean.
Do air filters really need to be replaced every 3 months?
To keep your air quality under control and your home clean, you’ll want to replace your filter at a minimal interval of every 2-3 months.
How often should I change the air filter on my HVAC system?
How Often Should I Change My HVAC Air Filter?
- 1-inch and 2-inch air filters should be replaced about every one to three months.
- 3-inch and 4-inch filters require replacement after six to nine months.
- 5-inch and 6-inch air filters need a change after nine months to one year.
What happens if you never change your air filter?
If you don’t change your AC filter, it will begin to fail. It will no longer be able to filter the air properly, letting dust and contaminants get into the AC. Dust jams the moving parts of an AC such as fan motors and valves. … This is how dust makes the unit less energy efficient (at best) and can lead to breakdowns.
Do I need both a furnace filter and a return air grill filter?
While many people refer to air conditioning and furnace filters as if they’re different, this is not the case. Your furnace and your air conditioning system use the exact same filter, so there’s no need to worry about purchasing separate filters for each piece of equipment.
How do you clean air return vents?
Fill your sink or tub with a solution of dish soap and hot water. Immerse the vent cover in the soapy water and leave it to soak for about 20 minutes to loosen stubborn dust and grime. Remove the cover from the water and scrub both sides with a damp cloth.
How often should MERV 13 filters be changed?
For Merv 8, 11 and 13 filters, we recommend that you change your filter at least every 3 months, however changing your filter every 2 months provides better filtration which provides healthier and cleaner air in your home.
What MERV rating do I need?
Using an air filter with a MERV rating of about 5 to 8 is appropriate for most residential homes. MERV 5 – MERV 8 filters provide good filtration and will remove most pollen, mold spores, and dust mites. … Generally, pleated filters have a higher MERV rating, while non-pleated filters have a lower one.
How often should you change 1 inch air filter?
For basic 1″–3″ air filters, manufacturers typically tell you to replace them every 30–60 days. If you suffer from light to moderate allergies, you could install a better air filter or replace them even more regularly.
How often should a 5 furnace filter be changed?
5” furnace filters should be replaced every 9-12 months.
How long does a 4 air filter last?
For 3- to 4-inch filters, replace them every 6 to 9 months. For 5- to 6-inch filters, replace them every 9 to 12 months.
Is no air filter better than a dirty one?
Running your air conditioner without a filter is worse than running it with a dirty one. Instead, get to the store as soon as possible for a replacement or call an HVAC professional for replacement. Without a filter, your air conditioner is at risk for severe and expensive problems.
What are the signs of a bad air filter?
8 Dirty Air Filter Symptoms: How to Know When to Clean Your Air…
- Air Filter Appears Dirty. …
- Decreasing Gas Mileage. …
- Your Engine Misses or Misfires. …
- Strange Engine Noises. …
- Check Engine Light Comes On. …
- Reduction in Horsepower. …
- Flames or Black Smoke from Exhaust Pipe. …
- Strong Fuel Smell.
What does dirty air filter look like?
A filter that is clogged with dirt is an obvious sign of a dirty air filter. … A brand new air filter is white or off-white in color, while a dirty air filter will appear darker with the dirt and debris visible.