We bring Comtoit to youÖCastle (5)
HVAC & Air Conditioning Repair

Air Quality Services by Air Knights in Minnesota

Air Knights provides expert indoor air quality testing and air purification systems across Minnesota. Our local air quality experts specialize in HVAC air filtration systems, air quality monitoring, and seasonal air quality management to keep your environment safe and healthy.
Book an Appointment
612-314-8886

Breathe Easier, Live Better

Air Quality Services at Unbeatable Prices

Don’t settle for subpar air quality in Minnesota! Our local air quality experts provide indoor air quality testing, air purification systems, and HVAC air filtration systems at affordable prices.

  • Professional Expert
  • Premium support 24/7
  • Exceed your expectations
  • Deliver 100% satisfaction
HVAC & Air Conditioning Maintenance

How Indoor Air Quality Affects Your Health in Minnesota

Indoor air quality plays a crucial role in overall health. According to ASHRAE, most people spend 90% of their time indoors, making air quality monitoring systems essential.

At Air Knights, we specialize in HVAC air filtration systems, professional air testing, and air purification systems to maintain ideal temperature and humidity levels in Minnesota. Humid indoor air can lead to mold and dust mites, while extremely dry air may cause respiratory infections and skin conditions like eczema.

Book an Appointment
612-314-8886
HVAC & Air Conditioning Maintenance

How Long Does A Furnace Filter Last?

Furnace filters typically last 1-3 months, but their effectiveness varies. The Minimum Efficiency Reporting Value (MERV) rating determines a filter’s performance. At Air Knights, we provide filter replacement services, HVAC air filtration systems, and air quality monitoring to maintain a healthier home in Minnesota.

  • MERV 8: Good
  • MERV 11: Better
  • MERV 13: Best
Air Conditioning Installation
HVAC & Air Conditioning Repair

We'll Quickly Come to the Rescue

We know how hard life can get when the AC is broken, that's why we've built a rapid response service to get things up and running 24 hours a day.
Better Pricing

We don't have the overhead of the large HVAC companies, and we have different goals.

Honesty & Transparency

When you choose Air Knights, we treat you like family & ensure you're never oversold.

Excellent Warranty

The products we sell & service we provide has a solid warranty behind it, allowing you to rest easy.

Air Conditioning & Furnace Repair Lakeville - Apple Valley - Rosemount - Prior Lake

Furnace & Air Conditioning Repair Services in South Metro, Minnesota

Air Knights provides expert HVAC repair, and air conditioning repair across Minnesota. Our services include AC compressor repair, filter replacement, air quality monitoring systems, and professional air testing to keep your home comfortable year-round.

Heating Services

Furnace Maintenance

Furnace Maintenance

Air Knights maintains furnaces across the entire Minneapolis / St. Paul Twin Cities Metro Area
Furnace Maintenance

Furnace Installation

Furnace Installation

Air Knights installs furnaces across the entire Minneapolis / St. Paul Twin Cities Metro Area
Furnace Installation

Furnace Repair

Furnace Repair

We'll get your furnace running it's best, at a price you can afford.
Furnace Repair

Cooling Services

Air Conditioning Repair

Air Conditioning Repair

Air Knights repairs air conditioners across the entire Minneapolis / St. Paul Twin Cities Metro Area
Air Conditioning Repair

Air Quality

Air Quality

Air Knights maintains air quality across the entire Minneapolis / St. Paul Twin Cities Metro Area
Air Quality

Air Conditioning Maintenance

Air Conditioning Maintenance

Air Knights maintains air conditioners across the entire Minneapolis / St. Paul Twin Cities Metro Area
Air Conditioning Maintenance

Air Conditioning Installation

Air Conditioning Installation

Minneapolis AC Installation 24 Hour Air Conditioning Installation Air Knights HVAC Twin Cities - Bet Value, Service & Quality in Minneapolis. Twin Cities AC Service
Air Conditioning Installation
Air Conditioning Repair

Understanding the Three Most Common Residential Furnace Filter Ratings

A MERV 8 filter removes fine particles, while MERV 11 and 13 filters capture even finer pollutants, improving indoor air quality. Your choice of filter depends on your home’s location, age, and personal health needs.

✅ Live in an older home or city with poor air quality? A high-efficiency HVAC air filtration system is recommended.
✅ New home in a small town? A MERV 8 or 11 filter may be sufficient.
✅ Have allergies or asthma? Consider a higher-rated air purification system for better protection.

 

Frequently Asked Questions

This could be due to a dirty filter, a faulty thermostat, or an issue with the pilot light. Try changing the filter and checking the thermostat settings. If the issue persists, call us for a professional inspection.

Most filters should be replaced every 1–3 months, depending on usage and air quality. A clogged filter can reduce efficiency and cause breakdowns. Need help choosing the right filter? Give us a call!

First, check the thermostat settings, the circuit breaker, and the furnace switch. If everything seems fine but it still won’t start, you may have a faulty ignition system or another issue contact us for a professional diagnosis.

Heat pumps struggle in extreme cold, but if it’s not heating at all, it could be a refrigerant issue, a clogged filter, or a faulty compressor. Call us to inspect and fix the problem before it gets worse.

This could be due to low refrigerant levels, a dirty coil, or a blocked air filter. Try changing the filter, but if the issue continues, you may need a professional recharge or repair. Contact us for a service call.

A clogged drain line or frozen evaporator coil is usually the culprit. Turn off your AC to prevent further damage and give us a call for service.

Regular maintenance, changing filters, sealing duct leaks, and upgrading to a programmable thermostat can help. Want a full energy-efficiency checkup? Schedule a consultation with us today!

Ideally, twice a year once in spring for AC and once in fall for heating. Regular maintenance helps prevent costly breakdowns. Book your tune-up with us today!

Licensed, Bonded & Insured Dealer

Air Knights Heating & Cooling, Inc. is a proud partner with industry-leading manufacturers.

Testimonial

What they say about us.

Our clients consistently praise our commitment to excellence and the high-quality aerial solutions we provide. They appreciate our reliability, professionalism, and the significant value we add to their projects.

Joe Carlson profile picture
Joe Carlson
1 year ago
My family and I were on an out of country vacation and our home monitoring system alerted us that the house was not heating and was close to freezing. The owner Paul was quick to reply and was able to diagnose our furnace within 1 hour of arrival I gave him my garage code witch I felt really comfortable doing just by talking on the phone with him that he was trustworthy he was on the phone with me with in 5 min when he figured out the problem gave me lots of options in regards to fixing the furnace I’m really happy that I got lots of education to prevent this problems like this from happening again very satisfied
Travis Naylor profile picture
Travis Naylor
2 years ago
Exceeded expectations - came late on weekday night and got the furnace running! Much needed as we had just returned with a newborn from the hospital!
Maxy and Cy Cybela profile picture
Maxy and Cy Cybela
2 years ago
I was able to get him after hours
He was helpful and understood the problem kept me out of trouble on a very cold night
David Vovk profile picture
David Vovk
2 years ago
Very professional, great service.
Edward Serbin profile picture
Edward Serbin
2 years ago
paul with air knights came out on time was very friendly and fixed my furnace in 20 min very happy would definitely recommend to anybody that need heating repair
Savash exterior LLC profile picture
Savash exterior LLC
2 years ago
Paul with air knights heating and cooling fixed my system in 3 minets of being in my house after i called him for second opinion after another company was here this morning said that i needed a new furnace and the only problem i had was a 20 dallor part that was needed to get it up and running definitely trustworthy and I would recommend to anybody that’s out of heat Top Notch service
Scott Wennerstrom profile picture
Scott Wennerstrom
2 years ago
Paul was excellent and explained everything and made it easy to understand. Replaced a dangerous furnace with a new high efficiency unit. Would recommend!
Matthew Clark profile picture
Matthew Clark
2 years ago
I couldn't be happier with the team that installed my new furnace. From start to finish, the process was smooth and professional. The technicians were respectful and ensuring everything was clean when they finished.
The new furnace is working perfectly and I have already noticed a difference in efficiency and comfort.
They also helped me with registration of the new equipment.
Air Knights Heating & Cooling, Inc. place picture
Air Knights Heating & Cooling, Inc.
4.7
Based on 113 reviews
review us on

We are Proud Sponsorships for Lakeville North boy's hockey team & Apple Valley High School Eagles Baseball

Sponsor for Lakeville North boy's hockey team

We are proud to be a sponsor for the Apple Valley High School Eagles Baseball Team. As a committed supporter of local talent and athletics, we take great pride in helping the young athletes reach their full potential. Together, we aim to foster teamwork, sportsmanship, and excellence both on and off the field. We’re not just about providing exceptional services to our neighborhoods—we’re dedicated to empowering our community and making a difference in the lives of future leaders.

Sponsor For Apple Valley High School Eagles Baseball

We are proud to be a sponsor for the Lakeville North Boys Hockey Team. Supporting this incredible group of athletes is not just an investment in hockey—it’s an investment in character, leadership, and perseverance. We’re honored to partner with the team as they aim for excellence, both on the ice and in life. Beyond providing exceptional services to our local neighborhoods, we are deeply committed to the success and well-being of our community, and we’ll continue to stand alongside them in every challenge and triumph.

We bring Comtoit to youÖCastle (5)
We specialize in delivering top-tier aerial solutions tailored to meet the unique needs of various industries. Our advanced technology and expert team ensure precise and efficient services, setting us apart as a leader in the field.
Company
All Services
Copyright ©2025 AirKnights, All rights reserved.
Facebook-f Instagram
Get In Touch