Fresheners

Fresheners are consumer products designed to improve indoor and vehicle air quality by releasing fragrance compounds into the air and, in some cases, by neutralizing odors. They are used to mitigate smells from cooking, smoke, pets, mold, and dampness, and are common in homes, offices, cars, bathrooms, and other enclosed spaces.

Common formats include aerosol sprays, plug-in electric diffusers, gel or solid dispensers, reed or wick diffusers, car air fresheners (such as vent clips and hanging trees), and sachets. Some products combine odor absorption with fragrance, while others rely primarily on fragrance diffusion or adsorption by activated charcoal or baking soda.

Most fresheners rely on fragrances composed of synthetic or natural aroma chemicals, along with solvents, carriers, and sometimes propellants or stabilizers. The mechanism may be masking, diffusion, or adsorption. Scent intensity and duration vary by product, with plugs often providing continuous release and sprays delivering short bursts.

Safety and environmental considerations include potential respiratory irritation from volatile organic compounds, allergens, and, historically, phthalates in some formulations. Regulatory labeling and emissions standards exist in many jurisdictions. Users should follow instructions, avoid spraying near heat or flames, keep products away from children and pets, and ventilate rooms after use. Proper disposal of containers is advised.

Market trends include a shift toward low-VOC and natural options, such as essential-oil diffusers and activated charcoal products. Consumers should balance fragrance preference with sensitivity concerns and consider odor-neutralizing alternatives when appropriate.