These Household Items You Shouldn't Use After Expiration

13. Heaters in Space

Duration: 3–5 years $40* is the average price. On chilly mornings and warm evenings, space heaters are temporary fixtures. These portable warming sources have a three- to five-year lifespan. During that time, they may begin to exhibit wear and tear, from ineffective heating to possible safety risks like electrical problems.

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Space Heaters ©Shutterstock/Yevhen Prozhyrko Their usable life can be increased with routine maintenance, such as dusting vents, but it's important to keep a close eye on their functionality and safety features. In addition to ensuring effective heating, a timely replacement reduces the risks associated with utilizing an antiquated unit. Safety should never have to be sacrificed in order to stay comfortable. ]

14. Air purifiers

Duration: 3–5 years $50 is the average price. Although humidifiers work wonders to enhance comfort and air quality, particularly in the dry months, they have a secret: they only last for three to five years. Even with careful maintenance, humidifiers can lose their effectiveness over time and can harbor bacteria or mold, which they subsequently mist back into your house.

Humidifiers ©Shutterstock/New Africa Longevity depends on cleaning the unit as directed by the manufacturer and changing the water in the unit on a regular basis. But in order to keep your space's air quality intact and make sure your humidifier keeps improving your comfort and health, you need to know when it's beyond its prime.