Ozone "problem" is a lie covering lie that covers another lie, etc.
It starts from home fridge. Initally fridges used ammonia or LPG(propane-butane mix) as refrigerant. They works perfectly and was cheap. Things go well until GM scientists discover freons. So, marketing begun. Old refrigerants was shamed, as poisonous and flammable, and the only replacement was freon. Corporations omit the information, that freon is not healthy too (and unlike ammonia have no strong odor to detect a leak) and flamable too. Even more, when freon burns, it produces phosgene. However, nobody cared to check marketing bullshit, as usual, and conventional and cheap refrigerants was replaced by expensive freons. That was the first lie.
Corporations want more money, and eventually ozone problem was extracted from deep black holes on the bottoms of corporate scientists. Freons, occasionally, react with ozone (like any other oxidizeable substance), so, that fact was used as a "consensus reason" for appearance of ozone holes and, again, for pushing more expensive "ozone friendly" refrigerants. They again did not tell, that freons are to heavy to reach higher levels of atmosphere. Also, they forgot to mention, that when freon reacts with ozone in lab, it produces phosgene. So, creating a hole of that size in ozone layer with freons would produce a lot of phosgene, enough to wipe out life from earth. But that didn't happen. There are no enough freon on Earth to create a hole of that size and it can't reach that layer in significant amount because it is too heavy.
So, when all money was harvested from that lies, industry returns to ammonia and propane-isobutane mix. They don't tell you that f.e. refrigerant R290 is propane, R600 and R600a is butane-isobutane mix, R717 is ammonia, R744 is CO2. Highly propably, your new fridge will use R600a, just like first fridges, that story starts from.
Ozone "problem" is a lie covering lie that covers another lie, etc.
It starts from home fridge. Initally fridges used ammonia or LPG(propane-butane mix) as refrigerant. They works perfectly and was cheap. Things go well until GM scientists discover freons. So, marketing begun. Old refrigerants was shamed, as poisonous and flammable, and the only replacement was freon. Corporations omit the information, that freon is not healthy too (and unlike ammonia have no strong odor to detect a leak) and flamable too. Even more, when freon burns, it produces phosgene. However, nobody cared to check marketing bullshit, as usual, and conventional and cheap refrigerants was replaced by expensive freons. That was the first lie.
Corporations want more money, and eventually ozone problem was extracted from deep black holes on the bottoms of corporate scientists. Freons, occasionally, react with ozone, so, that fact was used as a "consensus reason" for appearance of ozone holes and, again, for pushing more expensive "ozone friendly" refrigerants. They again did not tell, that freons are to heavy to reach higher levels of atmosphere. Also, they forgot to mention, that when freon reacts with ozone in lab, it produces phosgene. So, creating a hole of that size in ozone layer with freons would produce a lot of phosgene, enough to wipe out life from earth. But that didn't happen. There are no enough freon on Earth to create a hole of that size and it can't reach that layer in significant amount because it is too heavy.
So, when all money was harvested from that lies, industry returns to ammonia and propane-isobutane mix. They don't tell you that f.e. refrigerant R290 is propane, R600 and R600a is butane-isobutane mix, R717 is ammonia, R744 is CO2. Highly propably, your new fridge will use R600a, just like first fridges, that story starts from.