R32 is a single-component refrigerant. Unlike blends, it has zero "temperature glide," meaning if you have a leak, you don't have to worry about the gas separating. You can just top it off without having to evacuate the entire charge.

It is classified as A2L (Mildly Flammable). While it’s hard to ignite and burns slowly, U.S. building codes now require A2L-certified tools (spark-proof) and, in some cases, leak sensors in the indoor coil cabinet to ensure safety.

No, the piping sizes and pressures are very similar. However, you must use an A2L-rated vacuum pump and ensure your recovery tank has a left-handed thread (a U.S. safety standard to prevent accidental mixing).