The aliens made an Heating, Ventilation and A/C unit with toxic fumes in it.
When all of us first met the aliens, all of us thought they would help us advance our Heating, Ventilation and A/C industry. All of us wanted to know more about air conditioning plus get a better understanding of indoor air cleaning systems. All of us helped the airlines develop better commercial air conditioning units plus furnace replacement. In return they showed us a modern style of coolant that could be put into a central air conditioner or gas furnace. They claimed that this coolant could outdo our geothermal heat pumps plus hybrid Heating, Ventilation and A/C units in efficiency. All of us decided to put this coolant to the test in our Heating, Ventilation and A/C lab. At the lab all of us have the world’s leading Heating, Ventilation and A/C professionals, cooling specialists, plus heating professionals. When all of us put the coolant into our test central air conditioner, the air that came out was harshly toxic. All of the Heating, Ventilation and A/C professionals fell to the ground clenching their throats. One local maintenance guy who was there for observation was able to turn on three whole house whole-house air purifiers, plus some air conditioners that had HEPA air filters in them. The air cleared up just in time. If the toxic air had come any longer, numerous of the Heating, Ventilation and A/C professionals plus heating professionals would have died! All of us told the aliens to take back theri coolant plus leave us to do our own study on indoor air cleaning systems plus central air conditioners. To this day all of us do not know the intent of the aliens. Many guess they were trying to take over the world through our central air conditioners, gas furnaces, space heaters, plus any other Heating, Ventilation and A/C unit that the coolant could be used in. If that was the plan, all of us are thankful all of us have developed excellent indoor air cleaning systems.