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Purifier Running Cost Calculator: What It Costs After You Buy It
What will this purifier cost you every year?
Purchase price is the number on the box. This is the number you actually live with — and over five years it is frequently larger than the price difference that decided the purchase.
Running cost
₹6,588 a year · ₹549 a month
Five-year total after purchase: ₹32,940
Electricity: ₹788 (99 units)
Filters & consumables: ₹4,000
Service / AMC: ₹1,800
Electricity share: 12% of the total
Electricity is almost never the cost worth optimising — filters and service are. That is why the right question in the showroom is “what does a full filter set cost and how often does it need changing”, not “how many watts does it draw”.
The purchase price of a purifier is the number the showroom talks about, and it is the smaller half of what you will pay. Over five years a mid-range RO purifier costs more in filters, membranes and service visits than it did to buy — and two units that looked ₹3,000 apart on day one can be ₹15,000 apart by year five.
That is why the useful question in a showroom is not how many stages the unit has, but what a full filter set costs, how often it is due, and whether those parts are stocked in your city. A purifier whose consumables are expensive or unavailable will quietly stop being maintained, which is the same thing as no longer working.
The figures below are indicative Indian benchmarks for a four-person household. Use them to sanity-check a quotation rather than as a price list — actual costs vary with water quality, air quality, usage and how honestly your service provider prices parts.
Typical annual running costs in India
| Purifier type | Power | Consumables/year | Service/year | Typical annual total |
|---|---|---|---|---|
| Gravity / non-electric | 0 W | ₹600-1,200 | ₹0 | ₹600-1,200 |
| UV + UF purifier | 25-40 W | ₹1,200-2,000 | ₹0-1,500 | ₹1,500-3,500 |
| RO + UV domestic | 35-60 W | ₹2,500-4,000 | ₹1,500-3,000 | ₹4,000-7,500 |
| RO with hot water | 400-2,000 W | ₹3,000-5,000 | ₹2,000-3,500 | ₹6,000-11,000 |
| Air purifier, bedroom | 15-35 W | ₹2,000-3,500 | ₹0 | ₹2,500-4,500 |
| Air purifier, large room | 35-70 W | ₹3,000-6,000 | ₹0 | ₹4,000-8,000 |