air in your home

Air and your home


An air handler, or air handling unit, is the indoor part of an air-conditioning or heat pump system. Air handlers work much like furnaces in that they efficiently move air throughout the home. The main difference is that the air handlers only circulate heat when paired with a heat pump.  


Electronic air cleaners, sometimes referred to as ionizers or electronic air purifiers, use electrically charged filters to reduce the number of airborne contaminants in your home. As air passes through your heating and cooling system, the electronic air cleaner traps large particles (such as dust and dander) in a prefilter. Then, electrically charged filters attract and trap smaller particles (such as bacteria and mold) to prevent them from recirculating through your home.  


A humidifier is a device that adds moisture to indoor air in a single room or throughout an entire house. Whole-home humidifiers may use the fan in your furnace or air handler to blow humidified air throughout the ductwork, or they may work independently of your heating and cooling system to maintain humidity levels even when the furnace or air handler isn’t operating. 

How do I know if I need a humidifier? 

Low humidity can have a negative impact on your home and your health. First, it can dry out skin and airways, leaving family members vulnerable to colds and respiratory problems such as asthma and bronchitis. Dry air can also cause cracks in plaster, drywall and wood furniture – which can become costly repairs.  

Plus, low humidity makes indoor air feel colder than it actually is, so you’ll likely need to turn up your thermostat to feel comfortable. In this case, you’ll feel the effects on your utility bills as well. Installing a whole-home humidifier is an easy way to enhance your family’s comfort and health, without increasing your heating costs. 


Carbon monoxide (Sometimes referred to by its chemical abbreviation, CO) is an odorless, colorless, tasteless and poisonous gas that’s produced when fuels such as natural gas burn with insufficient air. When carbon monoxide leaks into your home’s air, it can lead to serious health problems for your family. Regular maintenance of your home’s heating and ventilation system will help ensure it’s not a source of a carbon monoxide leak. 

Can HVAC systems leak carbon monoxide? 

Although home heating systems produce only a small amount of carbon monoxide, it’s important to keep your furnace and vents properly maintained by a qualified service technician to prevent any potential leaks. He or she will perform a thorough inspection of your heating system and ensure all vents are clean and unobstructed. By scheduling preventative maintenance each fall, you’ll also help avoid any emergency repairs later in the winter. 


A ventilator is a device that replaces the stale, recirculated air inside your home with fresh, filtered outdoor air. An energy recovery ventilator (ERV) is ideal for warm and humid climates, since it cools and dehumidifies the incoming outdoor air. A heat recovery ventilator (HRV) is more appropriate for colder climates, as it transfers heat from recirculated air to the fresh incoming air. 

Does your home need a ventilation system? 

There are several reasons to consider a ventilation system for your home. For instance, your indoor air may feel stale and stuffy, which is often the case with today’s tightly constructed homes. Spray foam insulation is another advancement that’s great for energy efficiency, but not so good for indoor air quality. And if you have an attached garage, contaminants such as car fumes can leak into your home’s air if not properly ventilated. 

Dragon Air Services is a family-owned business located in the heart of Plano. We specialize in residential Air Conditioning and Heating repairs, Air Conditioning, and Heating replacements, and Air conditioning and Heating service. Our expert technicians pride themselves on providing honest diagnostics so our customers can make educated decisions on what’s best for them. If you are in need of replacing an HVAC unit in Dallas, Plano or surrounding cities call us today at 214-790-9872 to schedule an appointment.  

Here’s the list of services we provide in Plano and Collin County  

AC repair  

AC Replacement  

AC Installation  

Heater Repairs  

Heater Replacements  

Heater Installation  

AC and Heater Preventative Maintenance Furnace Repair  

Furnace Replacement  

Furnace Installation  

Duct Replacement