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Let's Clear the Air: Indoor Air Quality Systems to Help Keep Your Chicago Home Healthy & Comfortable

Your HVAC system filters your indoor air to remove particulate matter, but if you have family members or visitors who suffer from allergies, you should consider installing an air cleaner and/or humidifier to help keep your indoor air pollutant-free and comfortable.

Air Quality Installation Services

  • Recommendations for the right air cleaner and/or humidifier
  • Full installation of your air cleaner and/or humidifiers
  • Complete workspace cleanup
  • Free estimates on new equipment

Indoor Air Quality Equipment



Humidifiers add moisture to your air in order to protect your finishes and your health. Some of the finishes in your home require a certain percentage of humidity in order to function well and remain beautiful. Finishes and structures damaged by excessively dry air include hardwood floors, wooden furniture and hardwood moldings. When it comes to your health and comfort, properly humidified air can reduce static electricity and help you breathe better.

Our licensed HVAC technicians in Chicago can install standalone, fan-powered humidifiers, which are separate units that connect to your home's ductwork. Other options include ductless humidifiers or bypass humidifiers, which are directly connected to your HVAC system. We are proud to offer high-quality, durable Aprilaire humidifiers.

See Humidifiers

Air Cleaners

Filtration, purification and odor removal are the keys to cleaner, healthier indoor air. We offer the air cleaning equipment and expertise to do all three. From media filters and cabinets that remove allergens to air scrubbers and HEPA purifiers, we can recommend and install what you need to breathe easier.

See Air Cleaners

Additional HVAC Services

Air cleaners, humidifiers and dehumidifiers are additional items that are part of your HVAC system. In order to keep your entire system running well, we recommend planning for future preventive maintenance and repairs before they happen.


Experience You Can Trust for Residential HVAC Service

Althoff has been taking care of customers in the Greater Chicago area for nearly 60 years.

  • Family owned and operated
  • Licensed, insured and bonded
  • Professionally trained technicians
  • True 24 hour service
  • Live phone operators and staff
  • Employees drive marked vehicles and wear a uniform & ID badge
  • We quote firm prices upfront
  • Free estimates on equipment replacements
  • Quality brands and products you can trust
  • Ongoing training in our state of the art training lab
  • We clean up when we’re done
  • Variety of payment options available
  • Satisfaction guaranteed


"Matt knows our systems and definitely knows what he is doing. We have total confidence when he leaves that everything is done correctly."

~ T.S from North Barrington, IL


"Althoff's is a very good company who always gives great service and timely service by well-trained technicians. We are delighted to do business with this company!!"

~ R.G. from Crystal Lake, IL


"The tech was on time, efficient, and extremely knowledgeable. I would definintly use this individual again, if or when I need this kind of help."

~ M.S. from Crystal Lake, IL


Let Our Customers Tell You How Great We Are

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