Cleanse and Rinse Event Guide

Cleanse and Rinse is a limited-time event in Arknights: Endfield. Read ahead to learn how to progress the event, as well as the event period and rewards!

Cleanse and Rinse Event Period and Rewards

Event Period

The Cleanse and Rinse event involves washing away stains using the Spray Easy Tool in various locations in Wuling. Head to the designated areas and wash away the dirt to complete the event missions!

Missions are Easy and Fast

Filled Ferrium Bottles are provided to the player at the start of each event mission, so no prior preparation is required. Furthermore, there is no combat or special puzzles in the event, so completing each mission and earning rewards takes roughly 10 minutes per mission.

Event Rewards

Day 1	Oroberyl ×300 Mark of Perseverance ×4 Advanced Combat Record ×35
Day 2	Oroberyl ×200 Arms INSP Set ×75 Heavy Cast Die ×10
Day 3	Oroberyl ×200 Protohedron ×75 Protoprism ×50
Day 4	Oroberyl ×300 Mark of Perseverance ×4 Advanced Combat Record ×35
Day 5	Oroberyl ×200 Protoset ×60 Protodisk ×25
Day 6	Oroberyl ×200 Advanced Progression Selection Crate I ×15 T-Creds ×30K
Day 7	Portrait: Expert Cleaner Oroberyl ×300 T-Creds ×60K

In Cleanse and Rinse, completing each cleaning mission earns you rewards such as "Oroberyl" and "Mark of Perseverance." On the event's start day, two missions are unlocked, and from then on, one new mission is unlocked each day.

Cleanse and Rinse Event Guide

Critter's Trail Guide

First Stain is on the Signboard

The first Stain is found near Auntie Yu. Head outwards and spray the Signboard on your right.

Second Stain is on the Walkway

The second stain is found up the stairs from the first stain. After cleaning the signboard, face south and then walk up the stairs. Don't forget to clean the dirt on the walls too!

Last Stain is on the Solar Panels

The third and final stain is found on some solar panels lined on the roof. Approach the workers and hop onto the nearby boxes to access the roof area where the panels are found.

Cold Shower Guide

The 2nd mission is cleared by washing the dirt off 7 burdenbeasts near the Ecology Research Center. All 7 beasts are found within the mission zone, and you should remember to clean both sides of the animal.

Reign of Gloomy Dirt Guide

Use the Floating Platforms

The stains are located high up on the Xiranite Dam. Use the floating platforms to move around and reach the stains to clean them.

There Is a 10-Minute Timer

Unlike the previous missions, this one has a 10-minute timer, and you need to clean all 9 stains within the time limit. Once you have cleaned 6 out of 9 stains, the remaining stains will be marked with a red marker.

Chubby Lung Rescue

Clean All Sides Thoroughly

The Chubby Lungs you need to clean are quite large, so make sure to go around them and find every stain. This stage has a 10-minute timer, so clean each Chubby Lung thoroughly to avoid wasting time going back.

Use Platforms to Reach Elevated Areas

Use the rope, jump pads, and platforms to move around efficiently, especially since two of the Chubby Lungs are located on rooftops.

Hidden Danger

Clear Stains to Reveal Clues

Footprints and other clues are hidden beneath the stains. Focus on cleaning areas where clues might be located so you can uncover and interact with them.

Note!	You don’t need to clean every stain. Just focus on the ones that may be hiding clues.

Platform Cleaning Drill

Clear All Stains as Fast as Possible

Unlike all the previous missions, this mission only requires you to clean all stains as fast as possible. Study rope placements and platform movements to aim for a fast clear, and rank high in the leaderboard.

Note!	You don't need to rank high to claim rewards. Simply clearing all the stains is enough to get them.

Bouncy Cleaning Drill

Use Bounce Pads to Reach High Stains

Like the 6th mission, this mission only requires you to clean all stains as fast as possible. This time, you'll use bounce pads to reach higher stains.

Spray While Mid-Air

Before jumping on a bounce pad, make sure to equip the Jet Drone so you can use it mid-air. You’ll also fall slowly after jumping on the bounce device, giving you more time to clean stains.

Note!	You don't need to rank high to claim rewards. Simply clearing all the stains is enough to get them.

How to Progress in Cleanse and Rinse

How to Access Events

From the main menu, select Events → Cleanse and Rinse, then press "Go." This will prioritize displaying the related mission for you.

Read Chen's Message on Baker

Chen will ask the Endmin to deliver a message to the sanitation workers in Wuling.

Volunteer to Help Auntie Yu

Talk to Auntie Yu on the north side of the Residential Area in Wuling City, and you will reluctantly volunteer to help clean up the city.

Clean the Nearby Stain

Use the Spray Easy Tool to wash the nearby stains and dirt.

Clean Water Bottles are Provided

The Spray Easy Tool requires Ferrium Bottles filled with Clean Water to be able to wash away stains. Luckily, Clean Water bottles are provided at the start of every mission.

Clean Designated Areas

Once you start each mission, simply head to the designated mission area and clean up any stains and dirt with the Spray tool!

Arknights: Endfield Event Articles

Cleanse and Rinse Until Apr 19, 2026 04:00 AM (UTC -5)	Monumental Etching: Scorch Mark Until Next Version Update
Cryptic First Revealed Permanent Event	Grotto Survey Permanent Event

Narrative Events

The Red Knight

[Event Period] Until Next Version Update [Main Rewards]