Simple Green d Pro 3 Plus Disinfectant Concentrate Review

Affiliate disclosure: WC Safety earns a commission on qualifying Amazon purchases at no extra cost to you.

The disinfection half of a two-product program: D Pro 3 Plus concentrate, marketed as a disinfectant per its listing, for the restroom and touch-point work where 'clean' has a regulatory definition. Disinfectants are chemistry with homework — label dilution and wet contact time or it's just expensive cleaner.

Editorial rating: 4.4/5. A working disinfectant concentrate as listed; the label directions are the product, follow them literally.

Key specs

Published July 17, 2026 · Last updated July 27, 2026

Amazon listing verified (2026-07-16) — the button shows the live price.

Who it's for

Restroom routes, breakroom touch-point programs, and facilities whose cleaning contracts specify disinfection steps with named products.

Skip it if

General surface cleaning — paying disinfectant prices to remove dust inverts the economics; the Pro HD concentrate covers ordinary soil.

How it fits the facility safety program

Every product here sits under OSHA's hazard communication standard: labeled containers, accessible SDS, trained users, and PPE matched to the sheet. Measured dosing is the exposure control that makes concentrates safe economics. New to the department? Start at the janitorial & facility safety collection overview.

How it compares

vs Simple Green Pro HD: the general-cleaning partner product. (Our take: full Simple Green Pro HD review.)

vs GOJO 800 soap: the hand-hygiene end of the same program. (Our take: full GOJO 800 soap review.)

Pros and cons

Pros

• Concentrate economics for disinfection programs
• Covers the restroom/touch-point spec line
• Same-brand SDS ecosystem as Pro HD

Cons

• Efficacy depends entirely on dilution + contact time
• EPA label directions are the legal use — no shortcuts
• Gloved application per SDS

Build out the facility program

One product is a purchase; the program is what protects people. The chemistry rules live in the cleaning chemical safety guide and the wet-process discipline in the floor stripping guide; the whole hazard-to-product map is the custodial worker safety hub. Wave 1's decision tools carry the paper and waste programs: the dispenser compatibility guide, the liner size calculator, and the mil & micron decode, plus ranked picks for paper towels, liners, and wet floor signs. Crews need nitrile gloves, chemical-resistant gloves, splash goggles, and slip-resistant footwear; liquid failures belong to spill control. Shop the department: janitorial & facility safety, chemicals & dilution, equipment & floor machines, restroom supplies, shop towels & wipers — case-lot orders via bulk & business orders.

Related janitorial reviews

• Simple Green Pro HD Concentrate (1 Gal) review
• Zep Neutral pH Floor Cleaner ZUNEUT128 (1 Gal) review
• Zep Wet-Look Floor Polish ZUWLFF128 (1 Gal) review
• Zep All-in-One Floor Care Kit ZULFKIT (4 x 1 Gal) review
• Zep High Traffic Floor Polish ZUHTFF5G (5 Gal) review
• GOJO Natural Orange Pumice Hand Cleaner (4 x 2000 mL) review
• Gallon Jug Pump Dispensers (12-Pack) review

Janitorial & facility supply FAQ

General questions about ratings, OSHA limits and fit are answered in the cleaning chemical safety guide guide.

How we review

WC Safety reviews are spec-honest: we work from the manufacturer's published data and the live Amazon listing, flag any claim that exists only in listing copy ("per the listing"), and never invent certifications or test results. Ratings are editorial judgments about fit-for-duty at the captured price — not aggregated user scores.

Sources

Manufacturer product pages and the Amazon listing linked above; OSHA 29 CFR 1910.22 (walking-working surfaces), 1910.141 (sanitation), 1910.1200 (hazard communication), 1910.1030 (bloodborne pathogens) as referenced; our dispenser-refill pairing documentation in the compatibility guide.

Reviewed by Steven Eaton, WC Safety — workplace PPE review site and Amazon Associate. Pricing captured 2026-07-16; click through for current pricing.

Common questions

What does OSHA require for cleaning chemicals?

HazCom (1910.1200): labeled containers including transfer bottles, accessible SDS sheets, and documented training. It's perennially among the most-cited standards, and the janitorial cart is a favorite habitat for citations.

Which products can never be mixed?

Bleach + ammonia, bleach + acid cleaners, peroxide + vinegar — all generate toxic gas. The operational rule: one product per bucket, rinse between products, no folklore recipes.

Concentrate or ready-to-use?

Concentrates win on cost and waste by an order of magnitude, provided the dosing is measured. Without pumps or dilution control, RTU's premium buys you consistency a free-pouring crew can't deliver.

How do floor chemistries sequence?

Neutral cleaner daily; scrub-and-recoat with finish as gloss wears; full strip-seal-polish when recoats stop working. Getting the sequence wrong — degreaser on polish, finish on residue — is how floor budgets double.

Where should chemicals live between uses?

Labeled, closed, and secured — the locking-cabinet cart exists because chemical custody on public floors is part of HazCom thinking. Never in unlabeled spray bottles, which is the classic citation.

Sources. Requirements referenced here come from OSHA 29 CFR 1910 and the NIOSH recommendations. Where a consensus standard governs, the ANSI document is named in the text.

Related reference

Related reading in this area: 16-25 gallon trash bags, 33 gallon trash bags, and 55-60 gallon trash bags.

Why trust WC Safety

WC Safety is an independent, affiliate-supported review site. It is not a retailer: it holds no inventory, takes no orders, and earns only from qualifying purchases through clearly marked links — which never changes what a product is rated to do. Standards language is taken from the regulation text directly, and ratings are reported as the manufacturer publishes them. We run no laboratory and perform no testing of our own. Where published sources disagree, we say so and plan on the conservative figure rather than the flattering one.

Our methodology

Figures come from the regulation and the published specification, in that order. Derated numbers are calculated, not estimated. Nothing here is presented as a measured result, because we measure nothing.

Researched and written by Steven Eaton, editor of WC Safety. Steven holds no safety certification and does not test products; this page compares what manufacturers and regulators publish, with the gaps in that record marked. Last reviewed August 2026.