# Helium processing (technology)

internal name `helium-processing` · tier 5 (Chemical science pack, [tier 5](https://factorio.kalzumeus.com/tier/5.md))
HTML page: https://factorio.kalzumeus.com/tech/helium-processing/

## Cost

800 units of (1 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 2 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 3 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 6 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 10 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md)), 120 s each.

## Requires (1)

- [Biofilm](https://factorio.kalzumeus.com/tech/biofilm.md)

## Leads to (3)

- [Ralesia upgrade](https://factorio.kalzumeus.com/tech/ralesia-upgrade.md)
- [Semiconductor doping 2](https://factorio.kalzumeus.com/tech/semiconductor-doping-mk02.md)
- [Yotoi aloe - Stage 2](https://factorio.kalzumeus.com/tech/yotoi-mk02.md)

## Unlocks (5 recipes)

### Cold clean air (`cold-clean-air`)

- 8 s · tier 5
- Ingredients: 100 × [Cold air](https://factorio.kalzumeus.com/fluid/cold-air.md), 1 × [Biofilm](https://factorio.kalzumeus.com/item/biofilm.md)
- Results: 75 × [Cold clean air](https://factorio.kalzumeus.com/fluid/cold-clean-air.md), 3 × [Petroleum gas](https://factorio.kalzumeus.com/fluid/petroleum-gas.md)
- Made in: Filter MK 01, Filter MK 02, Filter MK 03, Filter MK 04
- Unlocked by: [Helium processing](https://factorio.kalzumeus.com/tech/helium-processing.md)

### Cool air (`cool-air`)

- 4 s · tier 5
- Ingredients: 120 × [Purified air](https://factorio.kalzumeus.com/fluid/purified-air.md), 45 × [Liquid nitrogen](https://factorio.kalzumeus.com/fluid/liquid-nitrogen.md)
- Results: 45 × [Cold air](https://factorio.kalzumeus.com/fluid/cold-air.md), 450 × [Nitrogen](https://factorio.kalzumeus.com/fluid/nitrogen.md)
- Made in: Evaporator MK 01, Evaporator MK 01 (Legacy), Evaporator MK 02, Evaporator MK 02 (Legacy), Evaporator MK 03, Evaporator MK 03 (Legacy), Evaporator MK 04, Evaporator MK 04 (Legacy)
- Unlocked by: [Helium processing](https://factorio.kalzumeus.com/tech/helium-processing.md)

### Liquid pure air distillation (`liquid-air-distilation`)

- 4 s · tier 5
- Ingredients: 5 × [Liquid clean air](https://factorio.kalzumeus.com/fluid/liquid-pure-air.md)
- Results: 0.2 × [Dry gas stream](https://factorio.kalzumeus.com/fluid/dry-gas-stream.md) (20% chance), 0.4 × [Helium](https://factorio.kalzumeus.com/fluid/helium.md) (40% chance)
- Made in: Destructive distillation column MK 01, Destructive distillation column MK 02, Destructive distillation column MK 03, Destructive distillation column MK 04
- Unlocked by: [Helium processing](https://factorio.kalzumeus.com/tech/helium-processing.md)

### Liquid clean air (`liquid-pure-air`)

- 1 s · tier 5
- Ingredients: 5 × [Cold clean air](https://factorio.kalzumeus.com/fluid/cold-clean-air.md), 100 × [Water](https://factorio.kalzumeus.com/fluid/water.md), 5 × [Gasoline](https://factorio.kalzumeus.com/fluid/gasoline.md)
- Results: 5 × [Liquid clean air](https://factorio.kalzumeus.com/fluid/liquid-pure-air.md), 100 × [Steam](https://factorio.kalzumeus.com/fluid/steam.md) (150°C)
- Made in: Compressor MK 01, Compressor MK 02, Compressor MK 03, Compressor MK 04
- Unlocked by: [Helium processing](https://factorio.kalzumeus.com/tech/helium-processing.md)

### Purified air (`purified-air`)

- 1 s · tier 5
- Ingredients: 100 × [Pressurized air](https://factorio.kalzumeus.com/fluid/pressured-air.md), 3 × [Activated carbon](https://factorio.kalzumeus.com/item/active-carbon.md)
- Results: 50 × [Purified air](https://factorio.kalzumeus.com/fluid/purified-air.md)
- Made in: Filter MK 01, Filter MK 02, Filter MK 03, Filter MK 04
- Unlocked by: [Helium processing](https://factorio.kalzumeus.com/tech/helium-processing.md)