R(R) Window Insulation and Blackout Screen L, 90 x 210 x 0.1 (cm), Heating and Cooling Efficiency, Energy Saving, Power Saving, Air Conditioner HN-074

In summer, it reflects sunlight's radiant heat (infrared rays, etc.) to increase air conditioning efficiency! In winter, the aluminum vapor deposition reflects radiant heat from heaters into the room, preventing the temperature from dropping. Material: PET Aluminum + PEVA Country of Origin: China Size (approx.): 94 x 210 x 0.1 (cm) Double-layered construction of odorless PEVA and PET aluminum sheet! Simply hang it on a curtain rail with an S-hook. The soft material makes it easy to open and close, improving air conditioning and heating efficiency year-round for energy savings. In summer, it reflects sunlight's radiant heat (infrared rays, etc.) to increase air conditioning efficiency! In winter, the aluminum vapor deposition reflects radiant heat from heaters into the room, preventing the temperature from dropping.