
How to Choose a Robot Vacuum: Suction, LiDAR, and Mopping
Robot vacuums split on four things: suction (Pa), navigation sensor, mopping style, and dock. Most homes are fine at 4,000Pa with LDS LiDAR; caked grime needs 2kg-plus rotating pressure.

Robot vacuums split on four things: suction (Pa), navigation sensor, mopping style, and dock. Most homes are fine at 4,000Pa with LDS LiDAR; caked grime needs 2kg-plus rotating pressure.

Multiply the floor area of the room you dehumidify — 0.76L per pyeong (3.3㎡) for apartments, 1.02L for houses. A 20-pyeong living area needs a 15L class unit; laundry-drying in a closed room needs only 10L. Full sizing table inside.

Start refrigerator sizing at about 100L per person, add 50-100L of headroom, and remember only 60-70% of the rated liters is usable space. Here is the per-household guide, the rated-vs-usable gap, and how a kimchi refrigerator changes the math.

For cordless vacuums, 150AW or more is sufficient for a primary vacuum. A government survey found that only 3 out of 10 products met their stated suction power — and 6 were labeling pascal (Pa), a pressure unit, as if it were suction power.

Induction heats only the cookware; radiant heats the glass surface. 90% vs. 65% efficiency, 3,700W vs. 2,300W max — the heating method determines heat output, residual warmth, and cookware compatibility. This post covers where hybrid fits and the electrical limits of a 3-burner setup.

A 6-place dishwasher washes one load of 6 place settings — divide by 3 for the right household size. This post covers dimensions and install conditions for countertop, freestanding, and built-in types, spray arm count as a washing-power indicator, and per-cycle electricity and water costs.

The inverter vs. non-inverter electricity bill gap comes from the compressor: one modulates output, the other just switches on and off. This post explains which structure loses under which usage pattern, covering spec-sheet reading and the basics of calculating your bill.

All-in-one washer-dryers lead with space efficiency; separate units lead with performance and flexibility. With summer appliance demand surging, this choice is not just preference — it requires evaluating installation conditions, cost structure, and usage patterns together.