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Big or Small is a full service Heating and Air Conditioning and HVAC Repair company that offers same day service and puts a strong emphasis on delighting the customer with quality of work and exceptional customer service.

Emergency Repairs: We offer 24-hour emergency service.

For more information, contact us today.

Indoor Air Facts

When you breathe in the air in your home, you may be breathing in more than you know. Approximately 87% of American homeowners are unaware of indoor air pollution. Our indoor air facts may surprise you

  • Did you know?
    In general, indoor air is four to five times more polluted than outdoor air
    According to a study by the Commonwealth of Massachusetts, indoor air contaminants are responsible for or aggravate half of all illnesses
    It is recommended we drink approximately two quarts of clean water each day. By comparison, we inhale approximately 15,000 quarts of air each da
  • Many susceptible
    Poor indoor air quality negatively affects the health of more than 15 million Americans who have asthma and the 28 million who suffer from hay fever and other allergies.
  • What is Clean Air Delivery Rate?
    How to Clean Your Air

    Cleaning Your Air: The Basics
    Clean air delivery rate is used to measure the effectiveness of air cleaning appliances. Created by the EPA, this measure is also recognized by The American Lung Association and the Association of Home Appliance Manufacturers. The higher the clean air delivery rate the more effective the unit is at cleaning the room or home of airborne particles and allergens.


Heating and Air Condition Repair, Baltimore Maryland, Heating, A/C, Air Conditioner