Refrigerator

A refrigerator is an essential appliance in every household, used for cooling and preserving food. The term 'refrigerator' comes from the Latin words "frigerare," meaning to cool, and "gerere," meaning to carry or bear. It's also commonly known as a fridge or icebox. In English-speaking countries, refrigerators are usually referred to simply as fridges.

Washing Machine

The washing machine is another indispensable appliance that helps keep our clothes clean by removing dirt and stains through mechanical action with water and detergent. The word 'washing machine' originates from the Old English words "wæscan" (to wash) and "mæcyn" (machine). They come in various types such as front-loading, top-loading, and semi-automatic machines.

Microwave Oven

A microwave oven uses electromagnetic waves called microwaves to heat up food quickly without cooking it directly like a conventional oven does with heat from electric heating elements or gas flames. The term 'microwave oven' was coined by Percy Spencer who accidentally discovered its working principle while testing magnetrons during World War II.

Dishwasher

Dishwashers are kitchen appliances designed for cleaning dishes efficiently using hot water at high pressure accompanied by detergents which can remove grease stains effectively without manual intervention unlike hand-washing methods where elbow grease is required manually scrubbing each dish before rinsing them under running tap water.

5.Central Vacuum System

Central vacuum systems provide cleaner air quality since they collect dust particles within their sealed ducts rather than releasing them back into living spaces like portable vacuum cleaners do when you use their exhaust ports after suctioning dirt on floors carpets upholstery etc., reducing allergens airborne bacteria viruses germs odors fumes smoke particles pet dander insect waste fibers lint hair fibers pollen mold spores fungi mites rodents insects even radioactive materials if present in contaminated areas around homes businesses schools hospitals clinics airports airplanes aircraft ships boats cars vehicles public places etc..