Transparency
Evidence Library
Every claim we make is sorted into general science (true of the category) or PawFresh-specific (documented for the product). The difference matters.
This library lists the claims behind our coverage. Each item is tagged by evidence type and by whether it applies to the pet-odor category generally or to PawFresh specifically. General science describes the mechanism; product-specific evidence describes PawFresh.
PawFresh-specific evidence
PawFresh NanoMist uses a fogger delivery format designed to disperse ActiveEnzyme Formula as a fine mist across surfaces and ambient air.
Relevance: Describes the documented product format and delivery method of PawFresh NanoMist.
PawFresh NanoMist Product Documentation · PawFresh · 2025
ActiveEnzyme Formula contains a documented enzyme blend intended to act on organic residues associated with pet odor.
Relevance: Manufacturer documentation of the formulation composition. Specific performance claims require further verification.
ActiveEnzyme Formulation Sheet · PawFresh · 2025
In a PawFresh customer survey, respondents reported perceived improvement in home freshness after incorporating PawFresh NanoMist into their routine.
Relevance: Self-reported user experience. Survey data reflects perception, not controlled testing. Full methodology available on the data page.
PawFresh Pet Home Survey 2025 · PawFresh · 2025
PawFresh NanoMist is intended for use on water-safe surfaces and ambient air; users should test on an inconspicuous area first.
Relevance: Documented usage guidance from product labeling.
PawFresh NanoMist Label Directions · PawFresh · 2025
PawFresh NanoMist is sold as a 120 mL fogger unit with refills available in the same volume.
Relevance: Documented product format and refill specification.
PawFresh Product Specification · PawFresh · 2025
PawFresh has accumulated over 87,000 verified customer reviews with an average rating of 4.8 out of 5.
Relevance: Aggregated customer review data. Reflects purchaser-reported satisfaction; not equivalent to controlled clinical or laboratory testing.
PawFresh Verified Review Aggregate · PawFresh · 2025
General science
Enzymatic cleaners can help break down certain organic residues that contribute to persistent odor.
Relevance: Establishes the general mechanism by which enzyme-based products act on organic soil. Does not describe PawFresh specifically.
General enzymatic-cleaning literature · Peer-reviewed cleaning-science literature · 2022
Protease enzymes target protein-based residues; uric acid deposits can persist in porous surfaces and reactivate with moisture.
Relevance: Explains why urine odor can return after surface cleaning. Applies to the category, not PawFresh alone.
Uric acid persistence in porous substrates · Surface-science literature · 2019
Volatile organic compounds (VOCs) from pet-associated organic material are a primary driver of perceivable household pet odor.
Relevance: Underlying science of odor perception. General, not PawFresh-specific.
Indoor VOC characterisation studies · Indoor-air-quality literature · 2021
Fragrance-based air fresheners primarily add scent and do not necessarily break down odor-source residues.
Relevance: Distinguishes masking from neutralization. Applies to the category broadly.
Air-freshener mechanism review · Consumer-product science literature · 2020
Humidity can increase the perceivable intensity of trapped odor by reactivating residual odor-source compounds.
Relevance: Explains seasonal and weather-driven odor fluctuation. General science.
Humidity and odor-release studies · Indoor-environment literature · 2018
Carpet fibers and upholstery fabrics can adsorb and retain odor compounds, making complete removal more difficult than from hard surfaces.
Relevance: Surface-science basis for why fabric surfaces hold odor. General.
Textile odor-retention studies · Textile-science literature · 2020
What this library does not claim
We do not present general cleaning science as proof that PawFresh works better than any other product. Where a claim is PawFresh-specific, we say so and cite the product documentation. Where evidence is self-reported (surveys, reviews), we label it as user experience rather than controlled testing.