How to calculate the total usage cost of ULPA? Procurement, energy consumption and replacement costs

The total usage cost of ULPA filters should be compared under the same air volume, cleanliness target and evaluation period, including costs related to procurement, energy consumption, maintenance, replacement and downtime. It is easy to miss the system differences by only looking at the unit price of the filter element. A common misunderstanding when using total cost accounting is to mistake 'low unit price' for 'low cost'. If a filter with a lower unit price has high resistance, the long-term energy consumption of the fan may be higher; if the dust holding capacity is small, the frequency of replacement will increase, and labor and downtime costs will also increase. Adding these costs up over the evaluation period may result in a completely different ranking than the unit price ranking. Aili Industrial's product line covers both filters, fans, and control systems. Operational energy consumption can be calculated based on actual operating points. Replacement cycles can be evaluated based on resistance trends. Total usage cost calculations are supported by actual operating data, rather than just theoretical estimates.

1. Calculation relationships and units: first write down the formula and value

Total usage cost = procurement and modification costs + electricity costs during the evaluation period + maintenance and replacement costs + applicable downtime costs. Initial calculation of electricity bill = average input power (kW) × operating hours (h) × electricity price (yuan/kWh). Power should be based on actual or well-founded estimates. Changes in filter element resistance and control modes may cause power to change over time.

The formula itself is straightforward, the difficulty lies in determining the power value. The ULPA resistance increases with running time, and the fan power will increase under constant air volume control. The air volume will decrease under constant speed control, but the power will not necessarily decrease. Multiplying the power in the initial state by the operating hours will underestimate the electricity cost during the evaluation period. Aili Industry isThe FFU fan filter unit package can provide power data according to two states of initial resistance and final resistance.The FFU computer group control system records actual operating parameters, and electricity bill accounting can be based on actual measured data rather than a single working condition. The relationship between levels and filtering requirements can be found inISO cleanliness level comparison。

2. Unify the comparison boundary: different plans have different cost items

Clarify the service life, operating hours, number of modules, electricity prices and maintenance assumptions, distinguish between actual records and estimates, and cannot directly compare different working conditions.

When comparing two options, if option A is evaluated on a 5-year basis and option B is evaluated on a 3-year basis, or if option A operates on a 24-hour basis and option B operates on a 16-hour basis, the cost data cannot be directly compared. The evaluation cycle, operating hours, electricity prices, labor costs and downtime losses must be calculated in a unified way. Aili Industry isIn the comparison of HEPA/ULPA filter solutions, data are provided based on the same evaluation period and operating conditions.The resistance and recommended final resistance of the ULPA ultra-high efficiency filter can be used as the basis for estimating the replacement cycle. The actual operating hours and electricity price are determined by the project party based on local conditions. For a unified method of cost comparison, please refer toHEPA FAQs and Selection Guide。

3. Incorporate operation and replacement: Downtime costs are often missed

The fan power should be evaluated based on the system and filter element resistance changes; the replacement cost includes the filter element, labor, testing and disposal, and if necessary, the downtime cost will be listed separately.

The replacement cost is not just the purchase price of the filter element. Labor for disassembly and assembly, leak detection and debugging after replacement, disposal of old parts, and downtime losses during replacement should all be included. For a continuously running production line, the cost of downtime may be much higher than the price of the filter element itself. Aili Industry isFFU fan filter unit andThe maintenance design of the fan filter unit on the EFU equipment side considers the convenience of replacement.The indoor side replacement method of the detachable FFU can shorten maintenance time and reduce the impact of downtime. For the relationship between replacement costs and maintenance methods, please refer toULPA ultra-high efficiency filter FAQ and selection guide。

4. If the interface of the low initial resistance solution needs to be significantly modified, the modification cost must be included

If the interface of the low initial resistance solution needs to be significantly modified, the modification cost should be included, rather than just comparing the estimated electricity bill for one year. When changing brands or structural forms, it may involve adjusting the box interface, changing the sealing method, and updating the installation tooling. These are all one-time investments.

Aili Industry isIn the non-standard ULPA filter replacement plan, the scope of modification is evaluated according to the original system interface. If the transition structure needs to be customized, the modification cost is listed separately;When the structural form of the liquid tank seal ULPA filter is changed, the adjustment of the tank body and the knife edge is part of the modification cost. For completeness of the full cycle cost comparison, please refer toHEPA FAQs and Selection Guide。

5. Assessment Uncertainty: No fixed payback period can be promised without verification

Lifetime, dust accumulation rates and production variations may affect results, reasonable ranges should be compared and assumptions retained. No fixed energy saving ratio or payback period can be promised without verification.

Total usage costing is an estimate based on assumptions, and changes in assumptions can significantly affect results. The dust accumulation speed is affected by the upstream environment and pre-filtration status, the operating hours are affected by the production plan, and the electricity price may be adjusted. A reasonable approach is to do a range analysis on key assumptions, giving cost ranges rather than single numbers, and revise them with actual data after the run. Aili Industry isthe FFU computer group control system . The operating data can be used to correct the initial estimate, making the cost accounting gradually closer to reality. The actual operating hours, air volume and resistance trends are recorded in For comparison of cost assumptions and operating data, please refer toULPA ultra-high efficiency filter FAQ and selection guide。

6. Related questions and answers

Is lower resistance necessarily cheaper?
The comparison needs to be based on purchase, applicability, actual power and lifespan, and cannot just look at one parameter.

Can Total Usage Costing Give Precise Figures?
Typically what is given is an estimate interval based on assumptions. Dust accumulation rates, operating hours and electricity price changes will all affect the results, and actual data corrections are applied after the run.

Why should renovation costs be included?
Changing brands or structures may involve interface adjustments, sealing changes, and tooling updates. These one-time investments are part of the total cost.

7. Related articles

ULPA ultra-high efficiency filter FAQ and selection guide

FFU computer group control system

Bottom-removable FFU | Bottom-replaceable fan filter unit

HEPA FAQs and Selection Guide

8. Key points for selection and acceptance inspection

9. Product matching and technical support from Aili Industrial

Aili Industrial's product lines cover both filters, fans, and control systems, and total usage cost accounting is supported by actual operating data.The FFU fan filter unit provides power data according to two states of initial resistance and final resistance.The FFU computer group control system records actual operating hours, air volume and resistance trends, and electricity bill accounting can be based on actual measurements and revised with operating data;Comparison of HEPA/ULPA filter solutions provides data based on the same evaluation period and operating conditions.the ULPA ultra-high efficiency filter are used as the basis for estimating the replacement cycle.The resistance and recommended final resistance of FFU fan filter unit andThe maintenance design of the EFU equipment end fan filter unit considers the convenience of replacement.The detachable FFU indoor side can be replaced to shorten maintenance time;The non-standard ULPA filter replacement plan evaluates the scope of modification based on the original system interface.liquid tank seals, ULPA filters , etc. are included in the modification costs. Adjustments to structural changes such as Provide process objectives, installation drawings, operating conditions and acceptance requirements, and can further communicate ULPA standard specifications, non-standard interfaces, samples and batch matching. The specific parameters and test range are based on the confirmed model and technical documents.