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2. How to Choose Between a Cool Mist and Warm Mist Humidifier

   www.aol.com/choose-between-cool-mist-warm...

   The pros and cons of warm mist vs. cool mist humidifiers and which is best for baby, cough, cold, sinuses, and sleep during dry winters and cold and flu season.

3. Is your heater making you sick? How to avoid cold-like ...

   www.aol.com/lifestyle/heater-making-sick-avoid...

   Humidifiers can add moisture back into dry air caused by heaters. Lizarzaburu recommends them, especially if you or your family members have a history of allergies or asthma. However, make sure to ...

4. RS Recommends: These Cooling Humidifiers Provide Relief ...

   www.aol.com/rs-recommends-cooling-humidifiers...

   These humidifiers gently blow cool mist into your space, which creates relief from dry air. If you suffer from allergies or asthma, y RS Recommends: These Cooling Humidifiers Provide Relief During ...

5. Leak-down tester - Wikipedia

   en.wikipedia.org/wiki/Leak-down_tester

   A compression tester. Leak-down testing is a static test. Leak-down tests cylinder leakage paths. Leak-down primarily tests pistons and rings, seated valve sealing, and the head gasket. Leak-down will not show valve timing and movement problems, or piston movement related sealing problems. Any test should include both compression and leak-down.

6. FTP-75 - Wikipedia

   en.wikipedia.org/wiki/FTP-75

   The weighting factors are 0.43 for the cold start and transient phases together and 0.57 for the hot start phase. [ citation needed ] Though it was originally created as a reference point for fossil fuelled vehicles, the UDDS and thus the FTP-75, are also used to estimate the range in distance travelled by an electric vehicle in a single charge.

7. Automotive air conditioning - Wikipedia

   en.wikipedia.org/wiki/Automotive_air_conditioning

   New cars produced in the early 1990s contained the new refrigerant in their air conditioning systems. Owners of older cars with R-12 systems would either have to invest in an R-12 to R-134a conversion system, buy a new car, or find a qualified technician to recharge their older R-12 system. R-134a has been used in cars for almost 30 years.

8. Compressed-air energy storage - Wikipedia

   en.wikipedia.org/wiki/Compressed-air_energy_storage

   This warms the exhaust of the preceding stage and admits this preheated air to the following stage. The only exhaust gas from each stage is cold air, which can be as cold as −15 °C (5 °F); the cold air may be used for air conditioning in a car. [15] Additional heat can be supplied by burning fuel, as in 1904 for the Whitehead torpedo. [55]

9. Here’s why electric cars don’t go as far in the cold

   www.aol.com/why-electric-cars-don-t-182941991.html

   When it gets too cold, all sorts of chemical reactions slow down, including those taking place in a battery. That means driving range is reduced. But human beings also don’t function so well in ...