Aaron Cooper

HEPA and MERV filters are two types of air filters commonly used in heating, ventilation, and air conditioning (HVAC) systems. Each has its own advantages and disadvantages, and the type of filter you choose will depend on your specific needs and the environment in which it will be used. HEPA filters, or High-Efficiency Particulate Air filters, are designed to trap very small particles, such as pollen, dust mites, pet dander, and tobacco smoke. They work by using a fine mesh of fibers that trap particles as they pass through the filter. HEPA filters are highly effective and can trap up to 99.97% of particles that are 0.3 microns in size or larger. On the other hand, MERV filters, or Minimum Efficiency Reporting Value filters, are designed to trap a range of particle sizes, from pollen and pet dander to mold spores and bacteria. They work by using a combination of mechanical and electrostatic filtration to trap particles. MERV filters are rated on a scale from 1 to 16, with higher numbe...

  Right size A/C for your space Size matters when it comes to air conditioners. A too-large unit will cool the air, but it will be damp and clammy. A unit that is too small will have to work harder to maintain the desired temperature, resulting in higher energy costs. The size of the air conditioner is the most important factor to consider. Temperature settings Even basic window units now feature digital displays, allowing you to choose a certain temperature and schedule your air conditioning to turn on and off when you leave and return. Central air systems, in many circumstances, are even more versatile. Energy-saving Another feature to look for in the best air conditioners is an energy-saving mode, which means the unit will turn off both the compressor and the fan when your space has cooled down, saving electricity. EER and SEER ratings These two BTU ratings are related (but not identical) measurements of a unit's energy efficiency. Meanwhile, the terms "energy efficiency ra...