Raoul Valstar 💫🎧

Co-Founder @AirTulipInc, sleep in a completely clean air bubble.

[Raoul Valstar 💫🎧 @RaoulWilliam]

@ankurnagpal @ericbahn Yes, I'm interested thanks! 😃

[Forbes @Forbes]

The 13 Best Products To Improve Both Your Air Quality And Sleep
https://t.co/jGEJBRuSjh

[AirTulip @AirTulipInc]

Did you know poor air quality could be disrupting your sleep? @Forbes Vetted recently featured the AirTulip Sleep Smart Headboard in their article on how air purifiers can transform your rest. Ready to elevate your sleep game? Read the whole article here: https://t.co/BdEFJjPvm8

[AirTulip @AirTulipInc]

The AirTulip Sleep headboard is redefining rest with clean air tech. CEO of @AptTherapy: “It is a silent, super-relaxing environment to sleep in."

Read the whole article here: https://t.co/4eOzFdJaqf

[AirTulip @AirTulipInc]

156M Americans breathe unhealthy air, up 25M from last year, per the American Lung Association's 2025 study. This alarming trend, driven by climate change factors, underscores the urgent need for cleaner air solutions. https://t.co/e7kJMPUB6I #AirQuality #Health

[AirTulip @AirTulipInc]

From Shark Tank to your bedroom! 🛏️✨ AirTulip’s headboard delivers pure, clean air for better sleep and health. Try it risk-free for 30 nights and save $300. Visit our website: https://t.co/aNClUaojE8 🌟 #AirTulip #SharkTank #SleepTech #HealthyLiving #AirPurification

[AirTulip @AirTulipInc]

To celebrate our appearance on Shark Tank, you will get $500 OFF AirTulip! Visit our website to order your headboard now: https://t.co/woG7OunqgO

If you missed the episode, you can watch it here: https://t.co/idZQivG7CI

[AirTulip @AirTulipInc]

Tomorrow’s the big day! We're all patiently waiting for the next episode of Shark Tank to air 🤩 Tune in Friday, April 11th, to see how we’re redefining clean air and wellness—one sleep at a time. Watch us on ABC at 8ET / 5PT. !

[AirTulip @AirTulipInc]

Thrilled to see @designmilk spotlighting our AirTulip headboard! Check out their feature to learn how we’re redefining air purification, one restful night at a time.

https://t.co/G93mcWLhpi

[AirTulip @AirTulipInc]

We're pitching AirTulip on SHARK TANK this FRIDAY! 🦈 What's Kevin O'Leary holding in his hand? Find out on ABC, this Friday April 11th at 8 pm ET/PT. Save the date!! Will the Sharks bite?

[AirTulip @AirTulipInc]

Sleep expert Dr. Breus recommends keeping your bedroom cool and washing bedding weekly for better sleep during allergy season. 🌱😴

Check out Dr. Breus's full advice here: https://t.co/NPZXLzYgCl

[AirTulip @AirTulipInc]

Crafting Innovation: A Look at How We Build AirTulip Sleep at @Newlab in the Brooklyn Navy Yard 👷🏻

#newlab #handcrafted #cleanair

[Raoul Valstar 💫🎧 @RaoulWilliam]

@APompliano @ElementsOfAI (both the Elements of AI and Building AI courses) and @huggingface AI Agent Course

[Bryan Johnson @bryan_johnson]

We know about things that kills us immediately: poison and accidents.

Air pollution kills slowly. Here’s how you can improve the quality of the air you are breathing.

[Raoul Valstar 💫🎧 @RaoulWilliam]

@thepatwalls Hi Pat, just sent you a DM!

[Raoul Valstar 💫🎧 @RaoulWilliam]

@jelleprins Gefeliciteerd! Succes met verder bouwen! 🔥

[Raoul Valstar 💫🎧 @RaoulWilliam]

@ankurnagpal 🙋🏽‍♂️

[Andreas Klinger 🦾 @andreasklinger]

🚨 Hey folks I got something to announce:

I am launching a new investment fund brand:

Prototype Capital 🦾
A globally-active first-check investment fund.

We focus on cool stuff that's technical hard to achieve, but also still new enough to be a bit weird – globally.

Think Robotics in Eastern Europe, AI in SF, Software remotely, OpenSource SaaS, Space-tech in India, Reindustrialization of Europe, AI Agents in Brazil, among many others…

- $100k-$200k
- we say we invest early and we actually mean it
- with every 5th investment we are the first to commit
- only 6% of all ivnestments were after seed
- the brand will be a larger umbrella for all kinds of stuff from our own prototypes 😬, to streams, to communities, to investinpublic transparency efforts
- this is legally speaking a rebrand of my previous solo GP fund so we got track record to proof
- we do about 15-20 investments per year

Link in thread! 🔥
Please RT if you got a sec – Appreciate your launch support 🙏❤️

[AirTulip @AirTulipInc]

🌟 Exciting news! We're thrilled to announce that we're teaming up with @Newlab for an unforgettable event at @Techweek_ ! 🚀 Experience 100% clean air with AirTulip, at Newlab! You can sign up here: https://t.co/xCJjIcplcV #TechWeek