CarCareTruth Score
Decent, but it's tough on the environment.
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Prices may varyThe manufacturer's Safety Data Sheet classifies this product with one or more GHS Category 1 health hazards — the most severe tier. The hazard statements in quotes below are the verbatim GHS language from the SDS, as required by OSHA's Hazard Communication Standard. The line under each statement translates the GHS classification into plain language.
GHS Category 1 aspiration toxicity — thin, oily liquids can slip into the lungs if swallowed, causing chemical pneumonia.
GHS Category 1 reproductive toxicity — classified as suspected of damaging fertility or harming an unborn child.
If swallowed, inhaled, or splashed in eyes:
Call Poison Control immediately at 1-800-222-1222 (US, 24/7, free) and have the product container with you. Poison Control's standing guidance is to not induce vomiting after chemical exposure; they will direct first-aid steps based on the specific product.
About this product's hazards. This product's Safety Data Sheet uses signal word danger. Read the manufacturer's SDS and follow all safety instructions before use. CarCareTruth ratings translate the manufacturer's safety sheet. They do not replace the SDS or substitute for a hazard assessment specific to your task.
Health score is for adult use as intended, per the manufacturer's SDS. It does not model child ingestion, accidental spill cleanup, or off-label use. See the safety panel below for full hazard classification, and /disclaimer for the full editorial scope.
GHS hazard codes are quoted from the manufacturer’s Safety Data Sheet. PPE tiers below translate those codes and the listed ingredient chemistry; they are not CarCareTruth recommendations.
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From the manufacturer’s Safety Data Sheet, Section 8
“SDS Section 2 classifies the MAF cleaner with H319 (Serious Eye Irritation Cat 2A). Aerosol mist at face level during engine-bay work can reach the eyes. SDS Section 8 specifies eye protection.”
— CRC
U.S. regulatory standard
29 CFR 1910.133(a)(1)
“The employer shall ensure that each affected employee uses appropriate eye or face protection when exposed to eye or face hazards from… liquid chemicals…”
ANSI Z87.1 (incorporated via §1910.6)
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“SDS Section 2 classifies Skin Irritation Cat 2 (H315). The petroleum distillate solvent base in the MAF cleaner warrants chemical-resistant gloves, particularly with repeated handling across both cans.”
— CRC
U.S. regulatory standard
29 CFR 1910.138(a)
“appropriate hand protection when employees' hands are exposed to hazards such as those from… chemicals which produce an adverse effect on the skin or eyes…”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“DANGER signal word on the MAF cleaner is driven by health H-codes (H304 aspiration hazard, H360 reproductive toxicity, H370 STOT-SE Cat 1), not flammability alone. Aerosol at close range in the engine bay · combined with high vapor pressure · means SDS §8 calls for adequate ventilation and respiratory protection in poorly ventilated spaces.”
— CRC
U.S. regulatory standard
29 CFR 1910.134; 1910.138; 1910.1000
“the primary objective shall be to prevent atmospheric contamination… When effective engineering controls are not feasible… appropriate respirators shall be used.”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
The published Safety Data Sheet for this product does not specify ventilation protection for consumer use.
Workplace context
29 CFR 1910.134(a); 1910.1000
“the primary objective shall be to prevent atmospheric contamination [via] accepted engineering control measures (for example, enclosure or confinement of the operation, general and local ventilation…).”
Triggered by GHS H336 on the SDS.
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
PPE tiers translate the manufacturer’s SDS and U.S. regulatory standards. Not professional safety advice. How we report safety.
This product ranks #3 of 5 in MAF Sensor Cleaner.
Last reviewed June 14, 2026
TL;DR This bundle pairs the community reference MAF sensor cleaner with CRC's throttle body cleaner · both induction cleaning jobs in one purchase. The MAF cleaner's DANGER signal word is driven by health H-codes (H304 aspiration hazard, H360 reproductive toxicity), not just flammability · higher hazard than simpler aerosol cleaners. Wear goggles and gloves; use with the garage door open.
Two cans: 11 oz MAF sensor cleaner and 12 oz throttle body cleaner. For the MAF cleaner · remove the sensor, two to four straw-directed bursts at the element, air-dry two to three minutes before reinstalling. For the throttle body · spray directly into the bore with the engine off. The MAF cleaner evaporates completely without residue. Community data from the standalone product (highly rated on Amazon with BITOG forum corroboration) confirms codes stay cleared on hot-wire and hot-film sensors; bundle owner feedback is consistent.
The right buy for a home mechanic tackling both MAF cleaning and throttle body maintenance in one session · the bundle uses the same trusted formulas as the individual cans. Skip it if you only need one cleaner, or if you're in California (the MAF cleaner component is CARB non-compliant and cannot be legally sold there).
The MAF cleaner drives the bundle's hazard profile: DANGER from health H-codes · H304 aspiration hazard, H360 reproductive toxicity (methanol), H370 STOT-SE Cat 1 · not flammability alone. Prop 65 confirmed. Goggles, gloves, and open-garage or outdoor use are the chemistry-based minimum. The TB cleaner is also DANGER-classified but at lower severity. Environmentally: the MAF cleaner is not CARB compliant (~665 g/L VOC), H411 aquatic toxicity confirmed, no biodegradability data.
One 11 oz can of CRC Mass Air Flow Sensor Cleaner (part 05110, ASIN B000J19XSA) and one 12 oz can of CRC Throttle Body & Air-Intake Cleaner (part 05078, ASIN B000M8PYO2). Both are sold as a single the product listing (B0D3LMTZW5). Individual products are also available separately.
The MAF sensor cleaner is the lead and dominant product in the bundle · it is named first, carries the higher hazard profile (petroleum distillate formula with DANGER from health H-codes), and drives the bundle's scoring. The TB cleaner component is scored separately in its own product file.
The MAF cleaner component's DANGER signal word is driven by health H-codes in SDS Section 2 · specifically H304 (aspiration hazard), H360 (reproductive toxicity Cat 1A from methanol), and H370 (STOT-SE Cat 1). This is a meaningful distinction from aerosols that carry DANGER only from aerosol flammability (H222/H225).
Yes · on the MAF cleaner component. SDS Section 15 lists ethylbenzene, methanol, toluene, and n-hexane under Prop 65. The TB cleaner component also carries a Prop 65 warning per its SDS Section 15.
No. The MAF cleaner component (CRC 05110) is confirmed not VOC compliant for California · SDS §15 reports 95% VOC by weight (~665 g/L estimated). The TB cleaner component (CRC 05078) uses an acetone-dominant formula that is CARB compliant on its own (71.4 g/L regulatory VOC), but the bundle as a whole is not CARB compliant.
Marketing copy from CRC, via Amazon. Not editorial.
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