Smart Cooling for Every Space.
Last August we pulled the front cover off a wall head in a DeLand bedroom while the homeowner stood next to us. She’d chosen that system two years earlier partly because the brochure talked about air purification, and her daughter’s allergies were the reason she cared. Behind the cover sat a grey plastic mesh screen … Read more
The slider handle in that Apopka house was hot enough that the homeowner had wrapped it in a hand towel. Inside her Florida room, the thermostat we’d brought along read 94 degrees. The living room next door held a steady 75. That 19-degree gap is why the question never goes away from May through October. … Read more
The 1-inch filter slot in a typical Florida air handler holds about 96 square inches of pleated media. That’s the surface area standing between an immunocompromised patient’s lungs and everything the return ducts pull back into the system on every cycle. Small piece of equipment. For a household with someone in chemotherapy, post-transplant, or on … Read more
From our experience analyzing HVAC performance patterns at CoolingDen, one issue shows up consistently: energy waste almost always starts with restricted airflow. A clean 20x25x5 MERV 11 Day and Night air filter helps keep that airflow stable, allowing the system to run more efficiently instead of overworking to push air through buildup and debris. This … Read more
The filter you can see isn’t the filter doing the work. On a recent Apopka service call, we measured 0.72 inches of water column of static pressure across a homeowner’s return filter. The spec called for 0.5. That filter had gone eleven months. Meanwhile, the homeowner had been swapping out black foam pads on every … Read more
Last spring, we pulled a filter out of a residential air purifier in a home outside Orlando while the homeowner watched. The unit had been running for six months in a bedroom shared by two kids, both on allergy medication. Our particle counter read MERV 10. The filter was a HEPA-style product, which is a … Read more
The price on a 21.5×23.25×1 air filter surprises people the first time they look it up. We hear it on service calls: after years of grabbing a standard size off the hardware store shelf, the number feels off. It isn’t. Custom-cut dimensions and MERV 13 filtration media create a cost structure that commodity filter sizes … Read more
A Code Orange alert went up across Fayette County last summer. A homeowner we’d spoken to that morning had sealed every window, checked the map, and figured she was protected. Her indoor PM2.5 reading sat nearly level with the outdoor number. The HVAC filter in her home was a MERV 8, last changed the previous … Read more
My Verdict If your system takes a 14x18x1 filter, Filterbuy gives you something I appreciate: real options. You’re not stuck with one MERV rating — you can choose how hard you want your filter to work based on what your system can actually handle. That flexibility is the whole story with this size. The tradeoff … Read more
Most Miami days look clean on the AQI map. We still find filter media inside local homes so packed with PM2.5 and biological debris that the system has been recirculating contaminants for weeks. That gap between what the outdoor number says and what’s actually cycling through your ductwork is exactly why this page exists. Here … Read more