Catalog index
The Catalog in Six Categories
48 listings across 6 categories. Every figure on every card comes from the listing it belongs to, and where a listing is silent the card says so instead of filling the gap.
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Furnace & HVAC Filters
Where the nominal-versus-actual gap does the most damage, because a frame that does not seat lets air past the media.
Sorted aroundfitting the slot and not choking the blower
- MERV 5 to 8
- MERV 11 to 12
- 4-inch depth
Air Purifier Filters
Shopped by a code molded into a plastic rim, with two very different kinds of compatibility claim behind it.
Sorted aroundmatching the model code on the old cartridge
- Genuine manufacturer filters
- Third-party listings stating compatibility
Thermostats
The only category here where the wrong choice damages equipment rather than merely disappointing somebody.
Sorted aroundcontrolling a system it is actually compatible with
- Smart and connected
- Basic programmable
Portable Air Conditioners
Sold under two capacity figures at once, and useless without a window the exhaust hose can reach.
Sorted aroundmoving heat out of a window, honestly measured
- Vented portable air conditioners
- Evaporative personal cooler — not an air conditioner
Pedestal & Standing Fans
Ten listings and four incompatible ways of describing what a fan does, only one of them an airflow measurement.
Sorted aroundmoving air, which is not the same as cooling it
- Full-size pedestal
- Portable and rechargeable
Humidifiers
Split on a mechanism rather than a preference: four that do not heat water, and one that boils it.
Sorted aroundadding moisture without adding a hazard
- Cool mist
- Warm steam
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