Ivan S Jayawan, PhD

@UMich Environmental Engineering PhD | Many people call me an environmental expert. I just want you to know why you have to drink clean 💧 & breathe clean💨

[Ivan S Jayawan, PhD @ivanjayawan]

1/ 🧵 Inspired by @marwa_zaatari @RobynSchofield3 @j_g_allen @ShellyMBoulder I have created the air cleaner buyer's guide for Indonesia. The guide is in Bahasa as I have Indonesian people as the target audience in mind.

It can be downloaded here: https://t.co/I8DeZJoLKL

[Ivan S Jayawan, PhD @ivanjayawan]

Polusi udara oh polusi udara

Nasib tinggal di Jakarta 😷😷🥲🥲

[Ivan S Jayawan, PhD @ivanjayawan]

@iamrobiinn Polusi udara, bukan kabut
https://t.co/mKvuIQCfth

[Ivan S Jayawan, PhD @ivanjayawan]

Good morning! A beautiful day outside, don’t forget to wear your gas mask!!

[Ivan S Jayawan, PhD @ivanjayawan]

@ajikotak Iqair airvisual indoor

[Ivan S Jayawan, PhD @ivanjayawan]

Nonton world cup sambil hirup polusi udara, nasib warga Jakarta 🥲😷

[Ivan S Jayawan, PhD @ivanjayawan]

Good morning! A beautiful day outside, don’t forget to wear your gas mask!!

[Ivan S Jayawan, PhD @ivanjayawan]

Kualitas udara pagi ini tanggal 9 Juni 2026 di Jakarta Metropolitan

Menyala paru paru kita semua 🔥🔥🔥

[Ivan S Jayawan, PhD @ivanjayawan]

@ajikotak Polusi kan ga mainly disebabkan oleh transportasi pak, masih ada banyak sumber polusi lainnya 🙏

[Ivan S Jayawan, PhD @ivanjayawan]

Kualitas udara pagi ini menyala 🔥🔥🔥

Jakarta peringkat pertama, harus bangga!!

[Ivan S Jayawan, PhD @ivanjayawan]

@ajikotak 😱😱😷😷

[Ivan S Jayawan, PhD @ivanjayawan]

3 titik pengukuran ini ga setuju dengan puluhan pengukuran lainnya loh

[Ivan S Jayawan, PhD @ivanjayawan]

@heylulufi @marwa_zaatari @j_g_allen @ShellyMBoulder Sy pribadi pakai @SmartAirFilters sih 🙏

Boleh coba dicek produk mereka, harga terjangkau, no gimmick & sangat efektif

[Ivan S Jayawan, PhD @ivanjayawan]

1/ 🧵 Inspired by @marwa_zaatari @RobynSchofield3 @j_g_allen @ShellyMBoulder I have created the air cleaner buyer's guide for Indonesia. The guide is in Bahasa as I have Indonesian people as the target audience in mind.

It can be downloaded here: https://t.co/I8DeZJoLKL

[Ivan S Jayawan, PhD @ivanjayawan]

@heylulufi @marwa_zaatari @j_g_allen @ShellyMBoulder Pakai dehumidifier + air purifier. Masing2 punya fungsi sendiri2, ga bisa saling menggantikan satu sama lain.

[Ivan S Jayawan, PhD @ivanjayawan]

@azookeeper24 @drnewstwit Ke dokter dimana di SG? So far my experience is pretty good kalo di SGH / NUH.

[Ivan S Jayawan, PhD @ivanjayawan]

“Banyak obat merusak jantung” tanpa konteks itu sama aja kayak

“Banyak makanan merusak lambung”

atau

“Banyak air merusak ginjal”

SEMUA, saya ulangi

SEMUA itu harus ada konteksnya

[Yuda Herdanto @yudaherdanto]

Pakdhe Indro bilang:
“Banyak obat merusak jantung → bisa menyebabkan gagal jantung (cardiac arrest)”

Kalimat ini terdengar ilmiah.
Tapi sayangnya: MENYESATKAN.

Izin saya luruskan. 👇

[Ivan S Jayawan, PhD @ivanjayawan]

Ngawur, mana ada crew SQ beli koper sendiri? Semua dpt std issue luggages dr maskapai. Crew itu saat jalan di airport scr lgsg jd “muka” airline di publik, penampilan (cara berpakaian, make up, hairdo, merek tas) & perilaku semua diatur ketat krn mereka = branding airline.

[Golongan Menengah @JiwaLowBatt20]

@Saefullloh Blm lama bengong di Changi sambil nunggu layover bbrp jam. Keliatan bgt emg flight attendant GA dimanja bgt. Sedangkan SQ yg lebih bonafit biasa aja. Mereka pre-flight makan beli sendiri di food court, koper mereka jg beli sendiri dan gak brand T kyk GA punya (byk yg cuma AT),dll

[Ivan S Jayawan, PhD @ivanjayawan]

@pribzzzz

[Ivan S Jayawan, PhD @ivanjayawan]

Bayangin title webinarnya kalo diganti jadi “Mengatasi efek gempa bumi pada struktur bangunan” dengan narasumber yg sama.
…
…
…
Gimana, masih mau ikutan?

[Ivan S Jayawan, PhD @ivanjayawan]

@ColminIndonesia Do you know why?

Because almost everybody barely know the traffic rules & regulation, in fact that knowledge is largely unnecessary to get a driver’s license 🙈

[Ivan S Jayawan, PhD @ivanjayawan]

@Arbiarso_W Besok2 kalo mau bangun rumah jangan cari civil engineer / tukang, cari dokter hewan aja.