Do Households with Pets Need Dehumidifiers?

Households with pets can benefit from a dehumidifier. It's not always strictly necessary, but there are a number of common reasons why a dehumidifier often makes sense if you have pets.

Why Pets and Dehumidifiers Often Go Together

Less mold, dust mites, and allergens

Pets add hair, dander, and sometimes moisture (from wet fur, baths, indoor water platters, indoor potty areas, etc.). High humidity plus dander tends to foster dust mites, mildew, or mold, which can aggravate pet (and human) allergies or respiratory problems. A dehumidifier helps by keeping humidity in a healthier range.

Better odor control & faster drying of messes

Moist environments help unpleasant odors from damp fur, urine, or accidents linger and intensify. Lower humidity means less lingering dampness, faster drying, and fewer odor problems.

Comfort and health for pets

For many pets (especially dogs, cats, and maybe small mammals), high humidity can worsen breathing, skin, or fur-related issues. Regulating humidity can make the indoor environment more comfortable and help prevent health issues.

Protecting home environment & furniture

With pets, there's often more cleaning, spills, wet fur, etc. Excess humidity plus moisture can degrade wood, warp floors, and encourage mildew on fabrics, which a whole house dehumidifier helps avoid.

When a Dehumidifier Might Not Be Worth It

If your home is naturally dry or the humidity is already low (common in arid climates or during winter with indoor heating), running a dehumidifier can over-dry the air. That may lead to dry skin, respiratory irritation, or discomfort for pets (especially sensitive ones).

Dehumidifiers must be used carefully: they need proper placement (out of pets' reach), regular maintenance (emptying tanks, cleaning filters), and ideally models that are quiet / pet-safe.

A dehumidifier does not replace good hygiene. Pet hair, dander, and mess still need regular cleaning; air purification or vacuuming often remains necessary.

When It Makes Sense for Your Household (Given Pets)

Here are indicators that a dehumidifier would likely help:

You notice musty or damp smells, or spots that stay damp (bedding, floor, basement, corners)

Pets regularly get wet (after baths, coming in from rain/snow, playing outside)

You or your pets have allergies, asthma, skin issues, or sensitive respiratory systems

You live in a humid climate or season, or your home has poor ventilation

You have multiple pets or pets that shed a lot

If none of these apply and your indoor air already feels dry or comfortable, a dehumidifier might be unnecessary, or even counterproductive.

For Instance

If you're in Salt Lake City, wintertime tends to bring dry indoor air (because of heating), but summers can get humid. If you have pets and have noticed dampness, odors, or mold during humid months, a dehumidifier can be a worthwhile investment. But you also want to monitor moisture levels — you don’t want the air too dry, so it’s good to use a hygrometer to aim for a balanced humidity (often recommended ~ 30–50%).