- Industry safety experts agree that appropriate vehicle design vastly minimizes any refrigerant combustion risks. SAE has concluded that it is 300,000 times more likely that a vehicle would experience a fire for reasons unrelated to the refrigerant than due to its refrigerant – and that there is no significant risk caused by using HFO-1234yf. Independent research has demonstrated that both HFC-134a – the very safe automobile refrigerant in use for the past two decades – and HFO-1234yf, when mixed with oil in automotive air-conditioning systems, can combust when sprayed on extremely hot surfaces. Claims that HFC-134a cannot burn are false. To read SAE's report, visit http://www.sae.org/standardsdev/tsb/cooperative/executivesummary.pdf.
- Fluorocarbons such as HFC-134a and HFO-1234yf are alike in the sense that that they can emit small quantities of hydrofluoric acid (HF) when they combust. SAE research demonstrated these quantities are well below thresholds that would affect human health and that, again, there is no significant risk caused by using HFO-1234yf. Fluorocarbon refrigerants have been used safely in automobiles for six decades, and there is no reason to believe HFO-1234yf will be different.
Honeywell Reaffirms Safety Of New Low-GWP Automotive Refrigerant
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